Haryati, S., Siswanto Siswanto, Sukarno Sukarno, Ahmad Muhlisin and Eli Trisnowati (2022) “A case-based study in ERP instructional model: Fostering critical thinking skills and portraying independence on solving problems”, Pegem Journal of Education and Instruction, 12(4), pp. 220–225. doi: 10.47750/pegegog.12.04.22.