Hassan, Abdullahi Muhammad, and Abdullahi Shaba Mohammed. “Effect of Activity-Based and Challenge-Based Learning Approaches on Technical Colleges Students’ Psychomotor Achievement in Furniture Craft Technology”. Jurnal Pendidikan Teknologi Dan Kejuruan, vol. 26, no. 1, Apr. 2020, pp. 1-10, doi:10.21831/jptk.v26i1.27610.