POLA PEMBINAAN INTERNATIONAL JUNIOR SCIENCE OLYMPIAD (IJSO) IPA DI TINGKAT NASIONAL. Educ. Sci. [Internet]. 2015 Mar. 2 [cited 2026 Jul. 26];6(1):9-16. Available from: https://journal.uinjkt.ac.id/index.php/edusains/article/view/1095