BBǣprīan rīangkhwām ThaiBǣprīan rīangkhwām Thaide Saʻāt Suntharōwāt, William J. GedneyMateriasThai languageComposition and exercisesThai essaysTextbooksEdiciones (1)Bǣprīan rīangkhwām Thai (1947)Prachāchāng · tha