Abdo, Mohammed. 2023. “A Low-Phase Noise Frequency Multiplier Chain”. Zede: Journal of Ethiopian Engineers and Architects የኢትዮጵያ መሐንዲሶችና አርክቴክቶች መጽሔት 8 (January):23-33. https://ejol.aau.edu.et/index.php/ZEDE/article/view/6199.