Havoić, Štefica. “Određivanje Optimalnog Organizacijskog Oblika poštanskih šaltera”. Promet - Traffic&Transportation 2, no. 1-2 (October 11, 2012): 35–40. Accessed August 27, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/1571.