National physics congress University of the Philippines, Baguio City, Samahang Pisika ng Pilipinas, & Danilo M. Yanga. (1988). Progress of the theoretic0al and experimental physics (1987): Proceedings of the sixth national physics congress held at University Philippines Baguio, 22-24 May 1987. Samahang Pisika ng Pilipinas.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National physics congress University of the Philippines, Baguio City, Samahang Pisika ng Pilipinas, و Danilo M. Yanga. Progress of the Theoretic0al and Experimental Physics (1987): Proceedings of the Sixth National Physics Congress Held at University Philippines Baguio, 22-24 May 1987. Quezon City: Samahang Pisika ng Pilipinas, 1988.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National physics congress University of the Philippines, Baguio City, et al. Progress of the Theoretic0al and Experimental Physics (1987): Proceedings of the Sixth National Physics Congress Held at University Philippines Baguio, 22-24 May 1987. Samahang Pisika ng Pilipinas, 1988.