@book{30723,
	author = {Zumel, Nina},
	title = {Practical data science with R},
	publisher = {Dreamteach Press},
	year = {2014},
	address = {New Dehli},
	url = {https://libgen.is/book/index.php?md5=B38A8A278350970F30CCC163E98E3ED9}
}