Kongnuy, R., Naowanich, E. and Kruehong, T. 2016. Comparisons of learning achievement on intensive preparation in Mathematics, Faculty of Science and Technology, Rajamangala University of Technology Suvarnabhumi. Interdisciplinary Research Review. 11, 4 (Oct. 2016), 15–21. DOI:https://doi.org/10.14456/jtir.2016.11.