Agustin, A., and D. Kusnanto. “The Effect of E-Service Quality and Sales Promotion on Interest in Using LinkAja E-Wallet Survey on Instagram Followers @linkaja”. Jurnal Ilmiah Wahana Pendidikan, Vol. 9, no. 2, Jan. 2023, pp. 66-75, doi:10.5281/zenodo.7563663.