“Penguatan Sikap Peduli Lingkungan Peserta Didik melalui Pendekatan Jelajah Alam Sekitar (JAS) Berbasis Model Problem Base Learning (PBL)”, Cakrawala: Jurnal Pendidikan, vol. 13, no. 2, pp. 56–63, Nov. 2019, doi: 10.24905/cakrawala.v13i2.208.