APA (7th ed.) Citation

Shadaan, P., & Leong, K. (2013). Effectiveness of using geogebra software on students’ understanding of the concept of circles.

Chicago Style (17th ed.) Citation

Shadaan, P., and K.E Leong. Effectiveness of Using Geogebra Software on Students’ Understanding of the Concept of Circles. 2013.

MLA (9th ed.) Citation

Shadaan, P., and K.E Leong. Effectiveness of Using Geogebra Software on Students’ Understanding of the Concept of Circles. 2013.

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