Aprilia S, Wahyudi H. Article 23 Income Tax Calculation System for Expedition Services: Study at one of the National Express Delivery and Logistics Service Companies in Bandung City. aj [Internet]. 2023 Dec. 30 [cited 2026 Oct. 9];3(2):169-78. Available from: https://journal.lemlit.org/index.php/aj/article/view/58