Tungcharoenchai, N. and Intagoon, K. 2023. VALUE STREAM MAPPING ANALYSIS AND TRANSPORTATION IMPROVEMENT FOR TOBACCO SUPPLY CHAIN: A CASE STUDY OF TOBACCO FARMERS GROUP AT SI SAMRONG DISTRICT, SUKHOTHAI PROVINCE. Life Sciences and Environment Journal. 24, 2 (Dec. 2023), 535–552. DOI:https://doi.org/10.14456/lsej.2023.40.