M. Sobiri, and Nashrullah. “ANALISIS VALIDITAS DAN RELIABILITAS INSTRUMEN PENELITIAN DALAM PENDEKATAN KUANTITATIF”. Jurnal Psikososial dan Pendidikan 2, no. 1 (February 14, 2026): 1048–1057. Accessed June 14, 2026. https://publisherqu.com/index.php/psikosospen/article/view/4042.