Jitranut Lochingchairit and Ekarat Rattagan. (2564) A Study of Product Recommendation in Offline Retail Store by using Collaborative Filtering: A Case Study of a Private Company. <i>Journal of information systems in Business JISB</i>, <i>7</i>(3), 59.Jitranut Lochingchairit and Ekarat Rattagan. "A Study of Product Recommendation in Offline Retail Store by using Collaborative Filtering: A Case Study of a Private Company". Journal of information systems in Business JISB 7 (2564):59.Jitranut Lochingchairit and Ekarat Rattagan. A Study of Product Recommendation in Offline Retail Store by using Collaborative Filtering: A Case Study of a Private Company. MSMIS Thammasat University:ม.ป.ท. 2564.