Anggraini, W., Reflinda, R., Melani, M. and Irwandi, I. 2023. An Error Analysis of Prepositional of Collocation in Thesis of English Education Department IAIN Bukittinggi. ALSYS. 3, 3 (May 2023), 212-227. DOI:https://doi.org/10.58578/alsys.v3i3.1043.