Firmansyah, R., A. Adam, and B. M. Batubara. “Implementation of Government Regulation No. 5 of 2021 Business Licensing for MSEs at the Serdang Bedagai One-Stop Investment and Integrated Services Office ”. Journal La Sociale, Vol. 6, no. 5, July 2025, pp. 1345-53, doi:10.37899/journal-la-sociale.v6i5.2264.