Palevi Alren, R., E. Nurwati, S. Purwanto, Moeljadi, Y. N. Supriadi, and S. Mulyantini. “Analysis of Factors Affecting Net Profit Margin: A Study of Telecommunication Companies”. Ilomata International Journal of Management, Vol. 7, no. 1, Jan. 2026, pp. 160-72, doi:10.61194/ijjm.v7i1.1887.