“Factors Influencing Consumer Purchase Intention of ‘KU Phuphan Black-Bone Chicken Product’ in Sakon Nakhon Province, Thailand : A Study Based on the Theory of Planned Behavior (TPB)”, 11, vol. 6, no. 2, pp. 23–32, Apr. 2017, doi: 10.18488/journal.11.2017.62.23.32.