TY - BOOK ED - Office of the permanent secretary ministry of tourism and sports TI - Front office functional competencies operate a private automatic branch exchange (PABX) switchboard: D1.HFO.CL2.08 Assessor Manual T2 - Front office functional competencies operate a private automatic branch exchange (PABX) switchboard SN - 9786162972584 AV - H0302 PY - 2015/// CY - กรุงเทพมหานคร PB - Office of the permanent secretary ministry of tourism and sports KW - Telecommunication KW - Communications KW - Office of the permanent secretary ministry of tourism and sports ER -