Milicic, D., M. Drndarski, J. Trajkovic, T. Savic, L. Lucic, and S. Pavkovic-Lucic. “‘A Matter of health’: Evaluation of Health Habits in Pupils in Primary School in Serbia”. Journal of BioScience and Biotechnology, vol. 6, no. 3, Mar. 2018, pp. 221-5, https://editorial.uni-plovdiv.bg/index.php/JBB/article/view/152.