Lomba Fotografi Gua di Ceko 15 October, 2012 by ascyogyakarta · Published 15 October, 2012 · Last modified 3 June, 2015
SUMBA SPELEOLOGY EXPEDITION 2010 30 March, 2012 by ascyogyakarta · Published 30 March, 2012 · Last modified 21 June, 2015
Compass Cave Data – Membuat Jaringan Sistem Perguaan 14 March, 2013 by ascyogyakarta · Published 14 March, 2013 · Last modified 3 June, 2015