Okoye, K. R. E., and M. A. Auta. “Development and Validation of Instrument for Assessing Students Practical Skills in Building Super-Structure Operations in Nigerian Secondary Schools”. International Journal of Social Sciences & Educational Studies, vol. 7, no. 2, June 2020, pp. 1-12, https://doi.org/10.23918/ijsses.v7i2p1.