Kerdpibule, U. (1976). Planning development of the light engineering industries: Report on the Philippine metal-working industry. East-West Center. East-West Technology And Development Institute.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Kerdpibule, Udom. Planning Development of the Light Engineering Industries: Report on the Philippine Metal-working Industry. Hawaii: East-West Center. East-West Technology And Development Institute, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Kerdpibule, Udom. Planning Development of the Light Engineering Industries: Report on the Philippine Metal-working Industry. East-West Center. East-West Technology And Development Institute, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.