เย็นบุญธรรม ป. FOOD SAFETY SITUATION, KNOWLEDGE, ATTITUDE AMONG FOOD SELLER IN THE FLEA MARKETS, PHITSANULOK PROVINCE. Pathumthani University Academic Journal, [S. l.], v. 14, n. 1, p. 12–27, 2022. Disponível em: https://so05.tci-thaijo.org/index.php/ptujournal/article/view/250570. Acesso em: 16 sep. 2026.