Sucharat Boonyoo และ Kanokorn Boonmakerd. (2026) Structural Relationship Model of Factors affecting Profitability and Profit Quality of Companies Listed on the Stock Exchange of Thailand in the Service Business Industry Group. <i>Ph.D. in Social Sciences Journal</i>, <i>16</i>(1), e279641.Sucharat Boonyoo และ Kanokorn Boonmakerd. "Structural Relationship Model of Factors affecting Profitability and Profit Quality of Companies Listed on the Stock Exchange of Thailand in the Service Business Industry Group". Ph.D. in Social Sciences Journal 16 (2026):e279641.Sucharat Boonyoo และ Kanokorn Boonmakerd. Structural Relationship Model of Factors affecting Profitability and Profit Quality of Companies Listed on the Stock Exchange of Thailand in the Service Business Industry Group. Doctor of Philosophy in Social Sciences Association Ramkhamhaeng University:ม.ป.ท. 2026.