D. Punomo, D.P., Wasliman, I. , Kartika A.F., I. and Ratnawulan, T. 2021. POLYTECHNIC LEADERSHIP STRATEGIES IN IMPROVING LECTURERS PROFESSIONAL (Case Study at the Jakarta LP3I Polytechnic). International Journal of Social and Management Studies. 2, 6 (Nov. 2021), 17 – 28. DOI:https://doi.org/10.5555/ijosmas.v2i6.77.