Wibowo, Arif, 		Sarsetyono, Yohanes, AND 		Apriyanto, Nuraedhi.
" MENINGKATKAN KOMPETENSI KEPALA SILINDER MOTOR 4 TAK DENGAN MODEL PROBLEM BASED LEARNING BERBASIS VIDEO ANIMASI" <em>Journal of Vocational Education and Automotive Technology</em> [Online], Volume 3 Number 2 (2 November 2021)