IMPLEMENTATION AND THE IMPLICATION OF THE NATIONAL IDENTIFICATION NUMBER (NIK) INTEGRATION INTO THE TAXPAYER IDENTIFICATION NUMBER (NPWP) IN INDONESIA. causa [Internet]. 2025 Jun. 23 [cited 2025 Jul. 7];14(6):61-70. Available from: https://ejournal.cahayailmubangsa.institute/index.php/causa/article/view/2851