Suharto, S., Shankar, K., Thanh Nguyen, P., A. Shichiyakh, R., & Sukotjo, E. (2019). Process Improvement of Business and Importance of Customer Feedback. Opción, 35, 2899-2921. Recuperado a partir de https://produccioncientificaluz.org/index.php/opcion/article/view/30955