Sujarwo, Sujarwo, Ibnu Samsi, and Lutfi Wibawa. “The Implementation of Learning Tourism Models to Nurture Environment Care Behavior”. Jurnal Cakrawala Pendidikan 37, no. 1 (March 8, 2018). Accessed May 7, 2025. https://journal.uny.ac.id/index.php/cp/article/view/18784.