Haghighinasab, M., S. Khosravi, and H. A. Asle Ghasabeh. “The Effect of Customer Agility on Performance of Software Companies in Iran”. Amazonia Investiga, vol. 7, no. 14, June 2018, pp. 151-6, https://www.amazoniainvestiga.info/index.php/amazonia/article/view/482.