Khaerunissa D, Ramadhani D, Setianingsih P, (Nino Adhi) N. Penerapan Teori Perkembangan Mental Piaget dalam Hukum Kekekalan Banyak. prisma [Internet]. 28Feb.2023 [cited 19Dec.2024];6:190-5. Available from: https://journal.unnes.ac.id/sju/prisma/article/view/66615