CHRISTIN NATALIA SIANIPAR; EVI IRENE SAURINA TAMPUBOLON. EFFECT OF COMMUNICATION, DISCIPLINE, WORK ENVIRONMENT ON MPLOYEE PERFORMANCE AT KSP CU. MAKMUR BERSAMA. JOEL: Journal of Educational and Language Research, [S. l.], v. 1, n. 7, p. 1041–1050, 2022. DOI: 10.53625/joel.v1i7.1626. Disponível em: https://www.bajangjournal.com/index.php/JOEL/article/view/1626. Acesso em: 5 jul. 2025.