ETIKA DAN MORAL PENELUSURAN GUA 21 March, 2013 by ASC-Jogja · Published 21 March, 2013 · Last modified 21 December, 2024
WATER TRACING (Tracing system of underground rivers Bribin and Seropan) 27 March, 2012 by ASC-Jogja · Published 27 March, 2012 · Last modified 21 December, 2024
Menjejak Dasar Goa Terdalam (2) 14 December, 2024 by Superadmin · Published 14 December, 2024 · Last modified 2 November, 2025