البواب, س. (2026). (663) Benefit- Cost Ratio and the Extent of its Application for Appraisal Development Projects in Less Developed Countries. معهد التخطيط القومى.
Citace podle Chicago (17th ed.)البواب, سيد. (663) Benefit- Cost Ratio and the Extent of Its Application for Appraisal Development Projects in Less Developed Countries. معهد التخطيط القومى, 2026.
Citace podle MLA (9th ed.)البواب, سيد. (663) Benefit- Cost Ratio and the Extent of Its Application for Appraisal Development Projects in Less Developed Countries. معهد التخطيط القومى, 2026.