Ningtyas, W.D. and Nastiti, D. 2022. The Relationship Between Achievement Motivation and Academic Flow in Middle School Students of Muhammadiyah 8 Tanggulangin Sidoarjo during the Covid-19 Pandemic. Journal of Islamic and Muhammadiyah Studies. 2, (Feb. 2022), 10.21070/jims.v2i0.1541. DOI:https://doi.org/10.21070/jims.v2i0.1541.