Hutabara, Yuliawan, 		Sarsetyono, Yohanes, AND 		Apriyanto, Nuraedhi.
" Peningkatan PerawatanEngine Konvensional Kijang 5k Melalui Model Pembelajaran Problem Based Learning Pada Siswa SMK" <em>Journal of Vocational Education and Automotive Technology</em> [Online], Volume 1 Number 3 (13 February 2020)