Maslahah, S., Ishartiwi, I., Mumpuniarti, M., & Normawati, Y. I. (2019). Contextual teaching and learning-based functional academic teaching materials for the teachers specialized in educating the students with visual impairment. Jurnal Prima Edukasia, 7(2), 182–196. https://doi.org/10.21831/jpe.v7i2.28738