Imperial, C. M. T., & Santos, Y. T. P. (2013). Breaking barriers: A study on the implementation, sustainability and user/community perception of a "free library" based on the Reading Club 2000 in Barangay La Paz, Makati City.

Imperial, Chris Martin T., and Yhna Therese P. Santos. Breaking Barriers: A Study on the Implementation, Sustainability and User/community Perception of a "Free Library" Based on the Reading Club 2000 in Barangay La Paz, Makati City. Quezon City : School of Library and Information Studies, University of the Philippines Diliman, 2013.

Imperial, Chris Martin T., and Yhna Therese P. Santos. Breaking Barriers: A Study on the Implementation, Sustainability and User/community Perception of a "Free Library" Based on the Reading Club 2000 in Barangay La Paz, Makati City. 2013.