Мандрик, Я. І. 2019. “CONTRIBUTION OF IVANO-FRANKIVS’K INSTITUTE OF OIL AND GAS (IFING) TO THE PERSONNEL TRAINING FOR OF OIL AND GAS COMPLEX OF UKRAINE (1967-1994)”. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY Idea, no. 3(23) (June):285-98. https://pvntsh.nung.edu.ua/index.php/idea/article/view/673.