A. S. Mujib, Mustolikh, and D. Bramasta, “Pengaruh Model Problem Based Learning Berbasis Outdoor Study Terhadap Hasil Belajar Siswa Mata Pelajaran Geografi Di SMA Negeri 1 Patimuan Kabupaten Cilacap”, EduCurio, vol. 1, no. 2, pp. 420–425, Mar. 2023.