@book{34375,
	author = {Seemab zakir},
	title = {Improvement in design of the blind stick for the visually impaired persons},
	publisher = {(unpublished)},
	year = {2021},
	address = {Islamabad},
	note = {Submitted in fulfillment of the requirements for the degree of Master of Sciences in Biomedical Engineering to the Faculty of Engineering an Applied Sciences.}
}