Analysis of The State of Educative Workers in Polytechnic of Agricultural (STPP) Lecturers Based on Empirical Data in Sumatera Utara. Petrop [Internet]. 2019 Aug. 1 [cited 2026 Feb. 4];6(2):227-3. Available from: https://idjpcr.usu.ac.id/jpt/article/view/3158