Villanueva, R. (2012). Opening ng panibagong school year at ang mga dulot nitong problema. DZUP.
Citace podle Chicago (17th ed.)Villanueva, Raymund. Opening Ng Panibagong School Year at Ang Mga Dulot Nitong Problema. Quezon City: DZUP, 2012.
Citace podle MLA (9th ed.)Villanueva, Raymund. Opening Ng Panibagong School Year at Ang Mga Dulot Nitong Problema. DZUP, 2012.
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