Rajagopal, Ramesh Behl, editors
Business Science Reference, 2017
Buku Teks
Alsmadi, Izzat, author
Springer Nature, 2019
eBooks
Buchele, Robert B., author
McGraw-Hill, 1977
Buku Teks
Sulistyanto Widagdo, author
Kementerian PPN/Bappenas, 2019
Artikel Jurnal
Taylor, James, author
IBM- Press, 2012
Buku Teks