APA (7e ed.) Bronvermelding

DR LIM, T. C. (2012). STRENGTHEN ENGLISH GRAMMAR FOR SECONDARY LEVELS (1st.). SAP EDUCATION.

Chicago (17e ed.) Bronvermelding

DR LIM, TAN. CHENG. STRENGTHEN ENGLISH GRAMMAR FOR SECONDARY LEVELS. 1st. SINGAPORE: SAP EDUCATION, 2012.

MLA (9e ed.) Bronvermelding

DR LIM, TAN. CHENG. STRENGTHEN ENGLISH GRAMMAR FOR SECONDARY LEVELS. 1st. SAP EDUCATION, 2012.