DIGITAL COMMUNICATIONS EXTERNAL QUESTION PAPERS
JNTUA R15 SYLLABUS PREVIOUS QUESTION PAPERS click on the links below https://drive.google.com/file/d/1UvMuTT8eAr1ERrNjCrE-_icOlPN8yI83/view?usp=sharing DC Text Book https://drive.google.com/file/d/1F2DPS9j6gFg0geUR5eCVsfUgjYYWmpoH/view?usp=sharing