KHALIKOVA MALIKA MAMURDJANOVNA. IMPROVEMENT OF MARKETING RESEARCH IN OIL PRODUCTION ENTERPRISES. European Journal of Interdisciplinary Research and Development , [S. l.], v. 10, p. 175–179, 2022. Disponível em: http://ejird.journalspark.org/index.php/ejird/article/view/246. Acesso em: 19 apr. 2025.