De Leon, M., Espejo-Lahoz, M. B., & Rodrigo, M. M. T. An analysis of novice programmer doodles and student acheivement in an introdcutory programming class. Philippine information technology journal..
Cita Chicago (17th ed.)De Leon, Marlene, Maria Beatriz Espejo-Lahoz, i Ma. Mercedes T. Rodrigo. "An Analysis of Novice Programmer Doodles and Student Acheivement in an Introdcutory Programming Class." Philippine Information Technology Journal. .
Cita MLA (9th ed.)De Leon, Marlene, et al. "An Analysis of Novice Programmer Doodles and Student Acheivement in an Introdcutory Programming Class." Philippine Information Technology Journal., .
Atenció: Aquestes cites poden no estar 100% correctes.