Molina, Russell Sampu pataas, sampu pababa : kabilang sa seryeng matematika / kuwento ni Russell Molina ; guhit ni Conrad Raquel - [Quezon City] : Adarna House, Inc., c2007. - [26] p. : col. ill. ; 23 cm - Kabilang sa seryeng matematika . A Book in 2 Languages ISBN: 9789715083041 Subjects--Topical Terms: Reading (Primary)Children's stories, Philippines (English)Children's stories, Filipino