Badawy, Michael K.
Developing managerial skills in engineers and scientists
Van Nostrand Reinhold, 1995
 Buku Teks SO
Drooyan, Irving
Elementary algebra : structure and skills
John Wiley & Sons, 1981
 Buku Teks SO
Skills to make a librarian: transferable skills inside and outside the library
edited by Dawn Lowe–Wincentsen
Chandos, 2015
 eBooks
Naylor, Thomas H.
Managerial economics : corporate economics and strategy
McGraw-Hill , 1983
 Buku Teks
Earnest, Peter
Business confidential: lessons for corporate success from inside the CIA
American Management Association, 2011
 eBooks