à¹€à¸‡à¸´à¸™à¸”à¸µ, à., & à¸à¸´à¸™à¸—à¸¸à¸§à¸‡à¸¨à¹Œ, à. 2018 Nov 29. à¸à¸²à¸£à¹€à¸‚à¹‰à¸²à¸–à¸¶à¸‡à¸—à¸²à¸‡à¸à¸²à¸£à¹€à¸‡à¸´à¸™à¸‚à¸à¸‡à¸œà¸¹à¹‰à¸„à¹‰à¸²à¸Šà¸²à¸¢à¹à¸”à¸™à¹„à¸—à¸¢. à¸§à¸²à¸£à¸ªà¸²à¸£à¸§à¸´à¸—à¸¢à¸šà¸£à¸´à¸à¸²à¸£ à¸¡à¸«à¸²à¸§à¸´à¸—à¸¢à¸²à¸¥à¸±à¸¢à¸ªà¸‡à¸‚à¸¥à¸²à¸™à¸„à¸£à¸´à¸™à¸—à¸£à¹Œ | Academic Services Journal, Prince of Songkla University. [Online] 29:3