Klimchuk , M.M. “TRIAD AND MODUS MODEL REALIZATION OF POTENTIAL ENERGY AND RESOURCE SAVINGS ON THE ENTERPRISES”. The actual problems of regional economy development 1, no. 13 (April 25, 2017): 68–73. Accessed February 22, 2025. https://vps.pnu.edu.ua/index.php/aprde/article/view/2768.