D. Pringgabayu, H. de Keizer, and F. Waruwu, “THE DEVELOPMENT OF THE KNOWLEDGE MANAGEMENT SYSTEM TO IMPROVE EMPLOYEES’S CAPABILITIES AND PERFORMANCEs: A CASE STUDY AT JUPITER DEPARTMENT PT. XYZ COAL”, Eqien, vol. 9, no. 2, pp. 97–103, Mar. 2022.