Further reading:

http://www.marxist.com/in-defence-of-ltv.htm

https://freedomthistime.wordpress.com/2011/12/19/debunking-economics-part-1-utility/

https://drive.google.com/file/d/0BxvNb6ewL7kOdWhYSEI4OVJHTkk/view

www.anwarshaikhecon.org/sortable/images/docs/publications/political_economy/1984/Shaikh%20-%20Transformation%20from%20Marx%20to%20Sraffa.pdf

www.dcs.gla.ac.uk/~wpc/reports/vol3/vol3.pdf

http://journals.sagepub.com/doi/abs/10.1177/030981689505500105

http://journals.sagepub.com/doi/abs/10.1177/048661349402600203

https://www.jstor.org/stable/23598125?seq=1#page_scan_tab_contents

https://www.jstor.org/stable/23597084?seq=1#page_scan_tab_contents

Sources:

https://www.marxists.org/archive/marx/works/1867-c1/ch07.htm

https://www.marxists.org/archive/marx/works/1875/gotha/ch01.htm

Price–value deviations: further evidence from input–output data of Japan by Lefteris Tsoulfidis Testing the labor theory of value in Sweden by Dave Zachariah Labour values, prices of production and the missing equalization of profit rates: Evidence from the German economy by Nils Fröhlich The Scientific Status of the Labour Theory of Value by W. Paul Cockshott and Allin Cottrell