Phanida Phanich. 2008. Evaluation of in-house English training courses : a case study of Michelin Siam Co., Ltd. (Laem Chabang). Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.46
Phanida Phanich. (2008) Evaluation of in-house English training courses : a case study of Michelin Siam Co., Ltd. (Laem Chabang) (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.46
Phanida Phanich. Evaluation of in-house English training courses : a case study of Michelin Siam Co., Ltd. (Laem Chabang). Bangkok:Thammasat University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.46
Phanida Phanich. (2008) Evaluation of in-house English training courses : a case study of Michelin Siam Co., Ltd. (Laem Chabang) (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.46