Ahmad, S., A. Ambiyar, and A. K. “PENERAPAN ASESMEN KINERJA BERBASIS PROJECT BASED LEARNING UNTUK MENINGKATKAN AKTIFIAS DAN HASIL BELAJAR PENGELASAN SISWA KELAS X SMKN 1 SUMBAR”. Ranah Research : Journal of Multidisciplinary Research and Development, Vol. 1, no. 3, May 2019, pp. 525 -33, https://jurnal.ranahresearch.com/index.php/R2J/article/view/87.