Christin Natalia Sianipar and Evi Irene Saurina Tampubolon 2022. EFFECT OF COMMUNICATION, DISCIPLINE, WORK ENVIRONMENT ON MPLOYEE PERFORMANCE AT KSP CU. MAKMUR BERSAMA. JOEL: Journal of Educational and Language Research. 1, 7 (Feb. 2022), 1041–1050. DOI:https://doi.org/10.53625/joel.v1i7.1626.