Sari, R. M., Sumarmi, S., Astina, I. K., Utomo, D. H., & Ridhwan, R. (2019). Measuring Students Scientific Learning Perception and Critical Thinking Skill Using Paper-Based Testing: School and Gender Differences. International Journal of Emerging Technologies in Learning (iJET), 14(19), pp. 132–149. https://doi.org/10.3991/ijet.v14i19.10968