Citation:
Gutierrez, Filomin C. 2012. “"Filipino Sociologist and Mentor: Professor Ricardo M. Zarco (1930-2011)"”. Philippine Sociological Review 60 (Special Issue):193-237. Copy at http://www.tinyurl.com/y6ocmz6h
Link to Article: http://pages.upd.edu.ph/fcgutierrez/publications/pangkat-inmate-gangs-new-bilibid-prison-maximum-security-compound