Doers Knowledge Management (Thailand) Co., Ltd. 1035/22 Soi Pridi Banomyong 41 (Soi Khun Vichit), Sukhumvit 71 Rd., Klongton‐Nua, Wattana Bangkok 10110 Tax ID. 0105559133255 Tel. 02‐713‐1171‐5 Fax. 02‐713‐1179