Pattra Pichetsilpa. 2006. Everyday Chinese speaking proficiency guidelines : a case study of Chulalongkorn University. Field of Study Chinese as a Foreign Language, Chulalongkorn University;
Pattra Pichetsilpa. (2006) Everyday Chinese speaking proficiency guidelines : a case study of Chulalongkorn University . Chulalongkorn University/Bangkok.
Pattra Pichetsilpa. Everyday Chinese speaking proficiency guidelines : a case study of Chulalongkorn University. . Bangkok:Chulalongkorn University, 2006.
Pattra Pichetsilpa. (2006) Everyday Chinese speaking proficiency guidelines : a case study of Chulalongkorn University . Chulalongkorn University/Bangkok.