Zainab K. Abdul-Hassan 2021. Evaluating the State of Affairs of the "Biological" and "Applied" System in the Preparatory School Study from the Students’ Perspective. Turkish Journal of Computer and Mathematics Education (TURCOMAT). 12, 13 (Jun. 2021), 3548–3559. DOI:https://doi.org/10.17762/turcomat.v12i13.9184.