Tepić, D., Kosić-Jeremić, S. and Ilić, M. 2016. Some external influential factors on mastering descriptive geometry at students of architecture. AGG+ Journal for Architecture, Civil Engineering, Geodesy and Related Scientific Fields . 4, 1 (Dec. 2016), 022-033. DOI:https://doi.org/10.7251/AGGPLUS1604034T.