Yefimenko, A. A., A. V. Golubev, and A. S. Kondrashov. 2002. “Statistical Estimation of Manufacturing Labor Costs for Printed Circuit Boards of Radio-Electronic Equipment”. Technology and Design in Electronic Equipment, no. 2 (April), 3-5. https://tkea.com.ua/index.php/journal/article/view/TKEA2002.2.03.