(2001). Consolidating procurement rules and procedure for all national government agencies, government-owned on controlled corporations and government financial institutions, and requiring the use of the government electronic procurement system. Manila Times.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)"Consolidating Procurement Rules and Procedure for All National Government Agencies, Government-owned on Controlled Corporations and Government Financial Institutions, and Requiring the Use of the Government Electronic Procurement System." Manila Times 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)"Consolidating Procurement Rules and Procedure for All National Government Agencies, Government-owned on Controlled Corporations and Government Financial Institutions, and Requiring the Use of the Government Electronic Procurement System." Manila Times, 2001.