Publications :
- Komang Anggayana, Agus Haris Widayat, Ringgo Syahtriano, Arie Naftali Hawu Hede : "Penelitian Kualitas Batubara Tiap Fraksi Ukuran Butir Akibat Proses Peremukan dan Pengayakan" LAPI-ITB, SP4-2005.
- Komang Anggayana, Agus Haris Widayat, Arie Naftali Hawu Hede, Ringgo Syahtriano : "Study of the effect of grain size distribution after crushing and sieving on quality and petrographic composition of coal from Kendisan and Suparto Block, East Kalimantan; Doi-Doi and Tondong Kura block, South Sulawesi, Indonesia". Proceedings of 9th International Symposium on Mineral Exploration (ISME IX). ITB, 19-21 September 2006.
- Arie Naftali Hawu Hede, Komang Anggayana and Teti Indriati: Study on Sodium Attendace in Coal, the Lati Site Case, Berau, East Kalimantan, Indonesia, Proceedings of International Symposium on Earth Science and Technology 2009. Nishijin, Fukuoka, Japan, December 8 – 9, 2009.