1. APICS, 1987. Dictionary Sixth ed. APICS, Falls Church.
2. Quantity-and-due-date-quoting available-to-promise;Chen;Information Systems Frontiers,2001
3. A model for batch advanced available-to-promise;Chen;Production and Operations Management,2002
4. e[B2]x, 2002, Why Promise Orders?, http://www.eb2x.com/products/epromise+_wp.pdf.
5. Available to Promise;Fischer,2001