| 
 No  | 
Penyelenggara | Judul | 
 Waktu dan Tempat  | 
| 1. | International Research Collaboration on Bioscience and Biotechnology for a Better Achievement and Sustainability.
 Universitas Udayana, Denpasar, Bali  | 
The Growth of Eucalyptus pellita F. Muell Seedling that Propagate Using Tissue Culture, Mini Cutting and Seed was Studied in Nursery and in The Field for Plantation (Oral Presentation) | 20 September 2014, Universitas Udayana, Denpasar, Bali | 
| 2 | International Research Collaboration on Bioscience and Biotechnology for a Better Achievement and Sustainability
 Universitas Udayana, Denpasar, Bali  | 
Various Picloram Concentrations for Inducing  Somatic Embryos in Various  Explant Ages of Peanut
 (Oral Presentation)  | 
20 September 2014, Universitas Udayana, Denpasar, Bali | 
| 3. | International Conference  on Food, Agriculture, and Tourism
 Fakultas Pertanian Universitas Mulawarman  | 
Study of
 BawangTiwai (EleutherineamericanaMerr) a Traditional Medicines of Local People in Kalimantan (Oral Presentation)  | 
Samarinda, August 5th 2015, | 
| 4. | Seminar Nasional “Potensi Produk Farmasi dari Bahan Alam Hayati untuk Pelayanan Kesehatan di Indonesia dan Strategi Penemuannya.
 Fakultas Farmasi Universitas Mulawarman, Samarinda  | 
Oral Presentation | Tanggal, 5-6 Juni 2015, Fakultas Farmasi Universitas Mulawarman, Samarinda | 
| 5. | Seminar Nasional, Fakultas Farmasi Universitas Mulawarman, Samarinda.
 Fakultas Farmasi Universitas Mulawarman, Samarinda  | 
Respon Pertumbuhan Dua Jenis Eksplan Bawang Putih (Allium sativum L.) Terhadap Perbedaan Konsentrasi Zat Pengatur Tumbuh | Tanggal, Oktober 2015, Fakultas Farmasi Universitas Mulawarman, Samarinda | 
| 6. | Seminar Nasional Silvikultur ke-4 dan Konggres Masyarakat Silvikultur Indonesia.
 Fakultas Kehutanan, Universitas Mulawarman  | 
Poster Presentation | Balikpapan, 19-20 Juli 2016, | 
| 7.. | Seminar Nasional Masyarakat Biodiversitas.  Samarinda, 26 November 2016.
 Masyarakat Biodiversitas Indonesia LP2M Universitas Mulawarman  | 
Morfogenesis eksplan tunas Eucalyptus pellita
 secara in vitro  | 
Samarinda, 26 November 2016 | 
| 8 | International Conference on Biodiversity (ICB) Berau, 5-8 July 2017
 Society for Indonesian Biodiversity  | 
Micro and Mini Cutting Application for Clonal Forestry on Eucalyptus pellita | Berau, 5-8 July 2017 | 
| 9. | Seminar Nasional Fakultas Pertanian UniversitasMulawarman
 Fakultas Pertanian Universitas Mulawarman  | 
Pengaruh Konsentrasi Air Kelapa dan Pupuk Daun terhadap Regenerasi Anggrek (oral Presentation) | Samarinda, November 2017 | 
| 10. | International Conference on Tropical Agrifood, Feed and Fuel (ICTAFF) | Somatic embryogenesis Induction in Peanut | Samarinda, 13-14 November 2018 | 
| 11. |  Seminar Berkala Fakultas Pertanian Universitas Mulawarman
 Fakultas Pertanian Universitas Mulawarman  | 
Pengaruh konsentras zat pengatur tumbuhi BAP dan Air Kelapa terhadap pertumbuhan protocorm-like bodies anggrek secara kultur jaringan | Samarinda, 14 Maret 2018 | 
| 12. | Seminar Nasional Pertanian 2019 ‘Tantangan & Peluang Menuju Pertanian Berkelanjutan”
 Fakultas Pertanian Universitas Mulawarman  | 
Mikropropagasi Anggrek Tebu (Grammatophyllumspeciosum Blume) | Balikpapan, 7-8 Agustus 2019 | 
| 10. | Fakultas Pertanian Universitas Mulawarman | Webinar Purna Tugas Tribute To Prof Ratna Nirmala Program Studi Agroekoteknologi Fakultas Pertanian Universitas Mulawarman | Samarinda, 29 Juni 2020 | 
| 11. | Fakultas Pertanian Universitas Mulawarman | Webinar Seri 4 Laboratorium Fakultas Pertanian Universitas Mulawarman “Pengembangan Tanaman Melalui Kultur In Vitro” | Samarinda, 12 Desember2020 |