Darmawan, Rian Suryo, Prapto Nugroho, and Addin Suwastono. “Simulasi Modulator Quadrature Phase Shift Keying (QPSK) Menggunakan Simulink”. ReTII00 (March 7, 2017). Accessed December 5, 2024. //journal.itny.ac.id/index.php/ReTII/article/view/443.