Sarah Fatricia, R. and Elliyana, D. 2019. PRODUCT DEVELOPMENT STRATEGY IN MSME DEFIA OYSTER MUSHROOM IN JAMBI. JOURNAL OF BUSINESS STUDIES AND MANAGEMENT REVIEW. 3, 1 (Dec. 2019), 76–81. DOI:https://doi.org/10.22437/jbsmr.v3i1.8650.