Pasaribu, S., and M. . Sovina. “The Application Of The Customer Satisfaction Index Method In Consumer Satisfaction With Service At Toko Cikal Aquarium”. Jurnal CoSciTech (Computer Science and Information Technology), vol. 6, no. 3, Dec. 2025, pp. 473-81, doi:10.37859/coscitech.v6i3.10463.