Sonang Sitohang, Sasi Agustin, and Firdaus Marsahala Sitohang. 2021. “THE EFFECT OF WORK DISCIPLINE, INTERPERSONAL COMMUNICATION, TECHNICAL SKILLS ON EMPLOYEE ACHIEVEMENT MOTIVATION”. Journal of Innovation Research and Knowledge 1 (5):825-44. https://doi.org/10.53625/jirk.v1i5.484.