Sotto, A. (1997). Ka Ipe is an unflagging proponet of the invisible camera. Philippine Daily Inquirer.
Chicago-viite (17. p.)Sotto, Agustin. "Ka Ipe Is an Unflagging Proponet of the Invisible Camera." Philippine Daily Inquirer 1997.
MLA-viite (9. p.)Sotto, Agustin. "Ka Ipe Is an Unflagging Proponet of the Invisible Camera." Philippine Daily Inquirer, 1997.
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