Kifta, D. A., Islami, S., Jalinus, N. and Abdullah, R. (2022) “The effects of leadership style, organizational culture and self-concept on trainers’ performance at the vocational training institutions”, Jurnal Pendidikan Teknologi Kejuruan. Padang, Indonesia, 5(1), pp. 8–14. doi: 10.24036/jptk.v5i1.22423.