Science and Mathematics Education Manpower Development Project (SMEMDP). (1999). Sourcebook on practical work for teacher trainers: High school physics, vol. 2. UP ISMED.
Cita Chicago (17th ed.)Science and Mathematics Education Manpower Development Project (SMEMDP). Sourcebook on Practical Work for Teacher Trainers: High School Physics, Vol. 2. Diliman, Quezon City: UP ISMED, 1999.
Cita MLA (9th ed.)Science and Mathematics Education Manpower Development Project (SMEMDP). Sourcebook on Practical Work for Teacher Trainers: High School Physics, Vol. 2. UP ISMED, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.