Chong, K. Y. Relationship between form four students' knowledge about environmental issues and their attitudes towards environmental issues.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chong, Kum Ying. Relationship Between Form Four Students' Knowledge About Environmental Issues and Their Attitudes Towards Environmental Issues.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chong, Kum Ying. Relationship Between Form Four Students' Knowledge About Environmental Issues and Their Attitudes Towards Environmental Issues.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.