Pinpinat Leela-Ampornsin. 2011. Learning achievement and opinion of second-year English and Business English majored students studying English for Airline Business at Phetchaburi Rajabhat University using a skill-based course book. Field of Study English, Phetchaburi Rajabhat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PBRU.the.2011.91

Pinpinat Leela-Ampornsin. Learning achievement and opinion of second-year English and Business English majored students studying English for Airline Business at Phetchaburi Rajabhat University using a skill-based course book. . Phetchaburi:Phetchaburi Rajabhat University, 2011. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PBRU.the.2011.91

Pinpinat Leela-Ampornsin. (2011) Learning achievement and opinion of second-year English and Business English majored students studying English for Airline Business at Phetchaburi Rajabhat University using a skill-based course book . Phetchaburi Rajabhat University/Phetchaburi. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PBRU.the.2011.91