Food & beverage service generic competencies converse in english at a basic operational level D1.LAN.CL10.01 Assessor Manual
- กรุงเทพมหานคร : Office of the permanent secretary ministry of tourism and sports, 2015.
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- Food & beverage service generic competencies converse in english at a basic operational level Assessor Manual Dark Pink Book .
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Converse in English Trainer Guide Hotel management