Rahman, M. Z., M. S. . Jailani, R. Risnita, and K. . Anwar. “Formulation of Problems, Variables, and Focuses in Scientific Research”. Jurnal Indonesia Sosial Sains, vol. 6, no. 6, June 2025, pp. 2050-6, doi:10.59141/jiss.v6i6.1714.