Singh R.P & Sapre S.D. (2017). Communication Systems: Analog And Digital (3th.). Mc Graw Hill Education (India)Pvt.Ltd.
Lua i Stíl Chicago (17ú heag.)Singh R.P agus Sapre S.D. Communication Systems: Analog And Digital. 3th. Chennai: Mc Graw Hill Education (India)Pvt.Ltd, 2017.
Lua MLA (9ú heag.)Singh R.P agus Sapre S.D. Communication Systems: Analog And Digital. 3th. Mc Graw Hill Education (India)Pvt.Ltd, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.