Z. Zainudin, A. D. . Supriadi, T. S. . Saragih, F. E. . Pradana, and R. H. . Hutabarat, “The growth of the BPJS Ketenagakerjaan brand equity index in 2021 - 2023”, ijirss, vol. 8, no. 4, pp. 1649–1655, Jul. 2025.