Junaid Kamaruddin, Muhammad, et al. “The Influence of Motivation, Communication, Leadership Style on Employee Performance at the Office of Supervision and Customs Service & Excise Type C Bontang”. Journal of Business and Behavioural Entrepreneurship, vol. 6, no. 1, July 2022, pp. 1-9, doi:10.21009/JOBBE.006.1.01.