Singapore. Parliament. Library. (1977). List of candidates of opposition parties in the 1972 and 1976 general elections. Parliament of Singapore Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Singapore. Parliament. Library. List of Candidates of Opposition Parties in the 1972 and 1976 General Elections. [Singapore]: Parliament of Singapore Library, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Singapore. Parliament. Library. List of Candidates of Opposition Parties in the 1972 and 1976 General Elections. Parliament of Singapore Library, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.