Arif, R., A. . Frinaldi, D. . Lanin, R. Rembrandt, G. . Umar, and N. . Syah. “Policy Gap Analysis in the Implementation of the Mining Safety Management System (SMKP) in Mining Service Companies: A Qualitative Grounded Theory Approach”. TOFEDU: The Future of Education Journal, vol. 4, no. 9, Dec. 2025, pp. 5866-7, doi:10.61445/tofedu.v4i9.1243.