Sirawut Hiran-us และ Somsinee Pimkhaokham. (2013) STUDY OF SHAPING ABILITIES OF PROTAPER NEXT IN SIMULATED S-SHAPED CANAL. Chulalongkorn University:ม.ป.ท.Sirawut Hiran-us และ Somsinee Pimkhaokham. 2013. STUDY OF SHAPING ABILITIES OF PROTAPER NEXT IN SIMULATED S-SHAPED CANAL. ม.ป.ท.:Chulalongkorn University;Sirawut Hiran-us และ Somsinee Pimkhaokham. STUDY OF SHAPING ABILITIES OF PROTAPER NEXT IN SIMULATED S-SHAPED CANAL. ม.ป.ท.:Chulalongkorn University, 2013. Print.