Khasanah, H. U., E. D. Adis, D. Rukayah, M. Vesakha, and T. Permana. “Derivational Morphology in English Language”. JOSAR (Journal of Students Academic Research), Vol. 2, no. 1, Sept. 2019, pp. 48-60, doi:10.35457/josar.v2i1.798.