M. A. Gumilang, “Penerapan Digitalisasi Layanan Konsulasi Pajak Di Tefa Tax Center Politeknik Negeri Jember Dengan Aplikasi Kalkulator Pajak: Digitalization Application of Tax Consultation Services at Politeknik Negeri Jember Tefa Tax Center through the Tax Calculator Application”, ppm, vol. 6, no. 1, hlm. 46–49, Jan 2024.