2023. Implementation of Facebook Marketplace for Convection and Embroidery UMKM Products (Jack Convection Medan) as an Effort to Increase Online Marketing and Sales. BIMA Journal (Business, Management, & Accounting Journal). 4, 1 (Jul. 2023), 21–26. DOI:https://doi.org/10.37638/bima.4.1.21-26.