Sonsawat, Supawan. 2021. “uidelines for eveloping arketing ix trategies to uild rand oyalty mong hicken art onsumers in estern egion”. ournal of anagement cience akhon athom ajabhat niversity 8 (1), 136-50. https://doi.org/10.14456/jmsnpru.2021.11.