Purnamawati, P. and Saliruddin, S. 2017. The effectiveness of the use of metacognition-based industrial electronic learning tools in growing higher order thinking skills (HOTS). Jurnal Pendidikan Vokasi. 7, 2 (Jul. 2017), 139–148. DOI:https://doi.org/10.21831/jpv.v7i2.13447.