Ihsan, Nur, 		Apriyanto, Nuraedhi, AND 		Suwignyo, Joko.
" PENINGKATAN PRAKTIKUM PEMELIHARAAN MESIN KENDARAAN RINGAN MELALUI MODEL PROBLEM BASED LEARNING DI SMK YASIHA GUBUG" <em>Journal of Vocational Education and Automotive Technology</em> [Online], Volume 1 Number 2 (4 January 2020)