Amor, R., Palima, D., Domingo, Z. and Daza, M. 1999. Absorption-induced optical reorientation in nematics doped with azo-dyes. Proceedings of the Samahang Pisika ng Pilipinas, 17(1), SPP-1999-SP-05. URL: https://proceedings.spp-online.org/article/view/SPP-1999-SP-05.