Nasution, E. S., Atika, A. and Daulay, A. N. (2025) “Factors Influencing the Improvement of BPJS Ketenagakerjaan Product Inclusivity in Medan City”, Journal of Mathematics Instruction, Social Research and Opinion. Bandung, Indonesia, 4(4), pp. 1177–1194. doi: 10.58421/misro.v4i4.797.