A Conceptual Blockchain Architecture for Dynamic Spectrum Access in 6G CR-IoT Networks: An Analytical Review. jast [انترنت]. 31 ديسمبر، 2025 [وثق 4 مايو، 2026];3(6):1467-80. موجود في: https://journals.su.edu.ye/index.php/jast/article/view/1953