Sonsawat, S. “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, ol. 8, no. 1, June 2021, pp. 136-50, doi:10.14456/jmsnpru.2021.11.