Ooi Giok Ling. (1978). The geography of socioeconomic health and distress in northwestern peninsular Malaysia. Southeast Population Research Awards Program.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ooi Giok Ling. The Geography of Socioeconomic Health and Distress in Northwestern Peninsular Malaysia. Singapore: Southeast Population Research Awards Program, 1978.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ooi Giok Ling. The Geography of Socioeconomic Health and Distress in Northwestern Peninsular Malaysia. Southeast Population Research Awards Program, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.