Orosa, M. Y. (2015). Portal: Gateway to adventure. Studio 5 Designs, Inc.
Lua i Stíl Chicago (17ú heag.)Orosa, Marily Ysip. Portal: Gateway to Adventure. [Makati City]: Studio 5 Designs, Inc, 2015.
Lua MLA (9ú heag.)Orosa, Marily Ysip. Portal: Gateway to Adventure. Studio 5 Designs, Inc, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.