Imani Khoshkhoo MH, Yousefi H. The relationships between marketing variables and their effects on each other. Opción [Internet]. 10 de junio de 2019 [citado 18 de enero de 2026];34(1):156-95. Disponible en: http://mail.produccioncientificaluz.org/index.php/opcion/article/view/24029