Roco, R. S. (2002). Estrada's impeachment trial and the role of literature in legal issues. Unitas.
Chicago-viite (17. p.)Roco, Raul S. "Estrada's Impeachment Trial and the Role of Literature in Legal Issues." Unitas 2002.
MLA-viite (9. p.)Roco, Raul S. "Estrada's Impeachment Trial and the Role of Literature in Legal Issues." Unitas, 2002.
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