APA (7th ed.) Citation

Delaviz, M., & Leong, K. (2013). Exploring students’ conceptual understanding of parallelograms based on Geogebra.

Chicago Style (17th ed.) Citation

Delaviz, M., and K.E Leong. Exploring Students’ Conceptual Understanding of Parallelograms Based on Geogebra. 2013.

MLA (9th ed.) Citation

Delaviz, M., and K.E Leong. Exploring Students’ Conceptual Understanding of Parallelograms Based on Geogebra. 2013.

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