Khaw, P. L. (1999). The Impact Of Intra-Firm Sourcing Strategy And Inter-Firm Sourcing Strategy On Supplies' Quality, Delivery And Cost.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khaw, Phaik Lean. The Impact Of Intra-Firm Sourcing Strategy And Inter-Firm Sourcing Strategy On Supplies' Quality, Delivery And Cost. 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Khaw, Phaik Lean. The Impact Of Intra-Firm Sourcing Strategy And Inter-Firm Sourcing Strategy On Supplies' Quality, Delivery And Cost. 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.