Pranata OD. Pelatihan Olimpiade Sains Nasional Bidang Kebumian Melalui Pendekatan Strategis. JPMMP [Internet]. 2023 Mar. 24 [cited 2025 May 14];7(1):56-62. Available from: https://jurnal.uny.ac.id/index.php/jpmmp/article/view/51410