МАНДРИК, Я. І. 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, [S. l.], n. 3(23), p. 285–298, 2019. Disponível em: https://pvntsh.nung.edu.ua/index.php/idea/article/view/673. Acesso em: 11 dec. 2025.