Ana, J., Leo, K. and Ile Mirčeski 2022. 647.DESIGN AND IMPROVEMENT OF A REUSABLE BOTTLE FOR SPORTS DRINKS USING VIRTUAL TESTING AND VALIDATION. MECHANICAL ENGINEERING – SCIENTIFIC JOURNAL. 40, 1 (Jun. 2022), 23–31. DOI:https://doi.org/10.55302/MESJ22401647023j.