APA (7th ed.) Citation

Lau, C. C. (1999). Sociolinguistic variables affecting English language proficiency of Iban students.

Chicago Style (17th ed.) Citation

Lau, Chuo Chie. Sociolinguistic Variables Affecting English Language Proficiency of Iban Students. 1999.

MLA (8th ed.) Citation

Lau, Chuo Chie. Sociolinguistic Variables Affecting English Language Proficiency of Iban Students. 1999.

Warning: These citations may not always be 100% accurate.