Muhamad, Suraiya, Jamalludin Harun, Johari Surif, Noor Dayana Abdul Halim, Siti Salbiah Omar, and Muhammad Umar Khan. 2017. “Process and Potential Factors to Develop Problem Solving Competency in Learning Electrolysis”. Sains Humanika 9 (1-4). https://doi.org/10.11113/sh.v9n1-4.1128.