Makalah yang dipresentasikan di seminar Internasional tapi tidak di prosidingkan; Joint-symposium-UNMUL-PSU-2013 2015
Abstract
Sertifikat pemakalah dan materi presentasi: A joint seminar between Mulawarman University and Prince of Songkla University, Thailand on energy and bioresources at Surat Thani Thailand, 2013.
Collections
- Letters [1997]