Indra Syahputra, M.H.I., Iswahyudi, M.S., Ali, G., Estuhono, E. and Santosa, T. 2023. Effect Size Mobile Learning on Student’s 21 st Century Skills. Edumaspul: Jurnal Pendidikan. 7, 2 (Oct. 2023), 2254-2262. DOI:https://doi.org/10.33487/edumaspul.v7i2.6613.