Yunita, Sylvia, et al. “Persepsi Guru Tentang Pelaksanaan Supervisi Di SD Negeri Se Kenagarian Air Dingin”. Jurnal Pendidikan Tambusai, vol. 5, no. 2, Aug. 2021, pp. 4381-6, http://jptam.org/index.php/jptam/article/view/1562.