Penguatan Sikap Peduli Lingkungan Peserta Didik melalui Pendekatan Jelajah Alam Sekitar (JAS) Berbasis Model Problem Base Learning (PBL). cakrawala-ups [Internet]. 2019 Nov. 1 [cited 2026 Jul. 20];13(2):56-63. Available from: https://cakrawala.upstegal.ac.id/index.php/cakrawala/article/view/208