Panjaitan, S. R. and Sihombing, D. P. S. B. (2026) “The Effect of Jamsostek Mobile Application Usage Effectiveness in Accelerating Old Age Security Claim Disbursement for BPJS Ketenagakerjaan Participants, Pematangsiantar Branch”, Jurnal Ilmu Sosial dan Humaniora , 4(1), pp. 548–562. doi: 10.58540/isihumor.v4i1.2590.