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Food & beverage service generic competencies develop and maintain food & beverage product knowledge D1.HBS.CL5.02 Assessor Manual

กรุงเทพมหานคร : Office of the permanent secretary ministry of tourism and sports, 2015 . 50 หน้า 9786162971631

Bangkok : Office of the permanent secretary ministry of tourism and sports, 2015 . 86 p 9786162971839

Bangkok : Office of the permanent secretary ministry of tourism and sports, 2015 . 146 p 9786162971723