@book{33420,
	author = {Muhammad Siddiq, Muhammad Hammad, Khan & Waqas Ahmed},
	title = {Tracer},
	publisher = {UITU,},
	year = {2016},
	address = {Karachi:},
	url = {https://drive.google.com/file/d/1vYDqDZFHUhtw9zlTRoRVX8Dat4uTFpJ9/view?usp=sharing}
}