National Physics Congress U.P. Los Banos, Samahang Pisika ng Pilipinas, & Yanga, D. M. (1989). Progress of theoretical and experimental physics, 1988: Proceedings of the seventh National Physics Congress, Samahang Pisika ng Pilipinas, U.P. Los Banos, 30 May-1 June 1988. Kalikasan Press.
Cita Chicago (17th ed.)National Physics Congress U.P. Los Banos, Samahang Pisika ng Pilipinas, i Danilo M. Yanga. Progress of Theoretical and Experimental Physics, 1988: Proceedings of the Seventh National Physics Congress, Samahang Pisika Ng Pilipinas, U.P. Los Banos, 30 May-1 June 1988. Manila: Kalikasan Press, 1989.
Cita MLA (9th ed.)National Physics Congress U.P. Los Banos, et al. Progress of Theoretical and Experimental Physics, 1988: Proceedings of the Seventh National Physics Congress, Samahang Pisika Ng Pilipinas, U.P. Los Banos, 30 May-1 June 1988. Kalikasan Press, 1989.