Suparman, Erni, Zetta, Hobes and Ernanda, Y. 2021. The Influence of Leadership Style, Motivation, and Work Discipline on Employee Performance PT. Perkebunan IV Kebun Adolina Nusantara Perbaungan. Jurnal Mantik. 5, 2 (Jun. 2021), 526-535. DOI:https://doi.org/10.35335/mantik.Vol5.2021.1361.pp526-535.