International function point users group. (2002). IT measurement practical advice from the experts. Pearson Education.
Trích dẫn kiểu ChicagoInternational function point users group. IT Measurement Practical Advice from the Experts. Singapore: Pearson Education, 2002.
Trích dẫn MLAInternational function point users group. IT Measurement Practical Advice from the Experts. Pearson Education, 2002.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.