Llagas, A. (1971). Stress in English and Tagalog: A descriptive-contrastive analysis with suggested drill materials for first year student in the division of Rizal. s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Llagas, Avelina. Stress in English and Tagalog: A Descriptive-contrastive Analysis with Suggested Drill Materials for First Year Student in the Division of Rizal. [Quezon City: s.n.], 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Llagas, Avelina. Stress in English and Tagalog: A Descriptive-contrastive Analysis with Suggested Drill Materials for First Year Student in the Division of Rizal. s.n.], 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.