Nurul Wahidah. “Effectiveness of Using M-Jasa Services in Responding to Transaction Needs of Kospin JASA Customers in Pekalongan”. Journal of Applied Social and Informatics Science, vol. 2, no. 1, Mar. 2022, pp. 29-36, https://e-journal.ptti.info/index.php/jasis/article/view/80.