Gaffar, I., E. S. Hajar, and N. Aisha. “Maximizing After Sales Service and Service Recovery to Increase Customer Satisfaction : Literature Review of Industrial Control System Customers in Indonesia”. Ilomata International Journal of Management, Vol. 7, no. 1, Jan. 2026, pp. 277-95, doi:10.61194/ijjm.v7i1.1944.