Azlinda Mohd. Masri 1975- Timbul dan tenggelam Azlinda Mohd. Masri - Cetakan pertama - 38p. col. ill. 26cm. - Suplemen Dunia Sains dan Teknologi . ISBN: 9789838776844 (Set) 9789838776905 Subjects--Topical Terms: Science--Juvenile literatureTechnology--Juvenile literature Dewey Class. No.: 500