APA (7th ed.) Citation

Howie, S. J., & Plomp, T. (2001). English Language Proficiency and Other Factors Influencing Mathematics Achievement at Junior Secondary Level in South Africa.

Chicago Style (17th ed.) Citation

Howie, Sarah J., and Tjeerd Plomp. English Language Proficiency and Other Factors Influencing Mathematics Achievement at Junior Secondary Level in South Africa. 2001.

MLA (9th ed.) Citation

Howie, Sarah J., and Tjeerd Plomp. English Language Proficiency and Other Factors Influencing Mathematics Achievement at Junior Secondary Level in South Africa. 2001.

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