Papob Jeerat และผู้แต่งคนอื่นๆ. (2026) Factors supporting diversity and conditions for reducing the burden of agricultural activities for elderly farmers in the highland areas of Thailand. <i>Khon Kaen Agriculture Journal</i>, <i>54</i>(2), 457-470.Papob Jeerat และผู้แต่งคนอื่นๆ. "Factors supporting diversity and conditions for reducing the burden of agricultural activities for elderly farmers in the highland areas of Thailand". Khon Kaen Agriculture Journal 54 (2026):457-470.Papob Jeerat และผู้แต่งคนอื่นๆ. Factors supporting diversity and conditions for reducing the burden of agricultural activities for elderly farmers in the highland areas of Thailand. Faculty of Agriculture:ม.ป.ท. 2026.