Basuki, M. and Satrio, P.P. 2023. Optimization of Space in the Oyster Mushroom Industry with the Activity Relationship Chart Method. International Journal of Education, Science, Technology, and Engineering (IJESTE). 6, 1 (Jun. 2023), 1-9. DOI:https://doi.org/10.36079/lamintang.ijeste-0601.469.