Walwisa Pongugsorn และ Nattapan Buavaraporn. (2021) INVESTIGATING THE FACTORS EFFECTING SERVICE QUALITY UNDER LEAN IMPLEMENTATION WITHIN COMMERCIAL AIRLINES INDUSTRY IN THAILAND. <i>UTCC International Journal of Business and Economics</i>, <i>13</i>(2), 187-208.Walwisa Pongugsorn และ Nattapan Buavaraporn. "INVESTIGATING THE FACTORS EFFECTING SERVICE QUALITY UNDER LEAN IMPLEMENTATION WITHIN COMMERCIAL AIRLINES INDUSTRY IN THAILAND". UTCC International Journal of Business and Economics 13 (2021):187-208.Walwisa Pongugsorn และ Nattapan Buavaraporn. INVESTIGATING THE FACTORS EFFECTING SERVICE QUALITY UNDER LEAN IMPLEMENTATION WITHIN COMMERCIAL AIRLINES INDUSTRY IN THAILAND. University of the Thai Chamber of Commerce:ม.ป.ท. 2021.