Uundaji bidhaa pepe za tarakilishi
John Rittinghouse (2003). Managing Software Deliverables: A Software Development Management Methodology. Karl E. Wiegers (2005). More About Software Requirements: Thorny Issues and Practical Advice. Robert K. Wysocki (2006). Ufanisi katika Usimamizi wa Uundaji bidhaa pepe.''