1. Abrahams, I. (2011). Practical Work in Secondary Science: A Minds-on Approach. London: Continuum International Publishing Group.
2. Akinbobola, A. O., & Afolabi, F. (2010). Analysis of science process skills in West African senior secondary school certificate physics practical examinations in Nigeria Bulgarian Journal of Science & Education Policy, 4(1), 32-47.
3. Deacon, C., & Hajek, A. (2011). Student Perceptions of the Value of Physics Laboratories. International Journal of Science Education, 33(7), 943-977. https://doi.org/10.1080/09500693.2010.481682.
4. DeVellis, R. F. (2012). Scale development: theory and applications (3rd ed.). California: SAGE Publications, Inc.
5. Doran, R., Chan, F., Tamir, P., & Lenhardt, C. (2002). Science Educator’s Guide to Laboratory Assessment. Virginia: NSTA Press.