APA (7th ed.) Citation

Choy, B. H., & Dindyal, J. An approach to teach with variations. Sociedad Española de Investigación en Educación Matemática.

Chicago Style (17th ed.) Citation

Choy, Ban Heng, and Jaguthsing Dindyal. An Approach to Teach with Variations. Sociedad Española de Investigación en Educación Matemática.

MLA (9th ed.) Citation

Choy, Ban Heng, and Jaguthsing Dindyal. An Approach to Teach with Variations. Sociedad Española de Investigación en Educación Matemática.

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