Wijayanti, R., and G. C. Premananto. “The Effect of Remuneration, Work Environment, and Employee Welfare Programs on Work Productivity at PT Petrokimia Kayaku”. Eduvest - Journal of Universal Studies, vol. 2, no. 8, Aug. 2022, pp. 1.469-78, doi:10.59188/eduvest.v2i8.540.