Darwis, D., Matondang, S., & Sianturi, M. (2020). THE EFFECT OF WORK DISCIPLINE AND WORK MOTIVATION ON EMPLOYEE WORK ACHIEVEMENT AT EDUCATION OFFICE OF NORTH SUMATERA PROVINCE. JURNAL PROINTEGRITA, 5(1), 147-164. doi:10.46930/jurnalprointegrita.v4i1.571