Asean Journal on Science & Technology For Development
Asian Committee on Science and Technology, 2000
 Majalah, Jurnal, Buletin
International journal of environmental science and technology
Iranian Society of Environmentalists (IRSEN) and Center for the Environment and Energy Research and Studies (CEERS), {s.a}
 Majalah, Jurnal, Buletin
Thammasat international journal of science and technology
Thammasat University,
 Majalah, Jurnal, Buletin
Octovianus Oskar Engelberth
Peran PT Pindad Dalam Pemenuhan Senjata TNI AD Dalam Mendukung Pertahanan dan Keamanan = The Role of PT Pindad in Fulfillment of TNI AD Weapons in Support of Defense and Security
Sekolah Kajian Stratejik Dan Global Universitas Indonesia, 2023
 UI - Tesis (Membership)
Octovianus Oskar Engelberth
Peran PT Pindad Dalam Pemenuhan Senjata TNI AD Dalam Mendukung Pertahanan dan Keamanan = The Role of PT Pindad in Fulfillment of TNI AD Weapons in Support of Defense and Security
Sekolah Kajian Stratejik Dan Global Universitas Indonesia, 2023
 UI - Tesis (Membership)