Nugroho, T., K. . Faskaharjyanto, S. Adinugroho, A. M. R. . Djong, and Y. A. . P. . Widodo. “Analysis of Chemical Usage Costs in the Public Area Section”. Jurnal Minfo Polgan, vol. 15, no. 3, Oct. 2026, pp. 3182-7, doi:10.33395/jmp.v15i3.16737.