Villanueva, R. O., & Gamos, R. (1986). Tiktaktok at Pikpakbum: Ang magkapatid na laging nag-aaway (3rd ed.). Children's Communication Center.
Chicago Style (17th ed.) CitationVillanueva, Rene O., and Renato Gamos. Tiktaktok at Pikpakbum: Ang Magkapatid Na Laging Nag-aaway. 3rd ed. Quezon City: Children's Communication Center, 1986.
MLA (9th ed.) CitationVillanueva, Rene O., and Renato Gamos. Tiktaktok at Pikpakbum: Ang Magkapatid Na Laging Nag-aaway. 3rd ed. Children's Communication Center, 1986.
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