Samahang Pisika ng Pilipinas Physics Congress. (1999). Proceedings of the 17th National Physics Congress, Leyte Normal University Tacloban City, Leyte 22-24 October 1999: Building and sustaining a tradition for the 21st century. Samahang Pisika ng Pilipinas.
Dyfyniad Arddull ChicagoSamahang Pisika ng Pilipinas Physics Congress. Proceedings of the 17th National Physics Congress, Leyte Normal University Tacloban City, Leyte 22-24 October 1999: Building and Sustaining a Tradition for the 21st Century. Quezon City: Samahang Pisika ng Pilipinas, 1999.
Dyfyniad MLASamahang Pisika ng Pilipinas Physics Congress. Proceedings of the 17th National Physics Congress, Leyte Normal University Tacloban City, Leyte 22-24 October 1999: Building and Sustaining a Tradition for the 21st Century. Samahang Pisika ng Pilipinas, 1999.