@book{9106, author = { Wisner, Joel D and Leong, G. Keong}, title = {Principles of Supply Chain Management : }, publisher = {South-Western/Cengage Learning,}, year = {2012.}, address = {Australia :}, edition = {3rd ed.}, url = {https://books.google.com.pk/books/about/Principles_of_Supply_Chain_Management_A.html?id=8g9EDwAAQBAJ&source=kp_book_description&redir_esc=y} }