na NUTBA000000000003566 20140821145558.0 978-602-8637-04-6 0010-081400000000411 NBPDMAT 372.7 Ryu e Ryu Tri Ensiklopedia matematika tematik seri 4 luas dan volume / Ryu Tri Jogyakarta : Uralus Publishing, 2009 56 hlm. : ilus. ; 24 cm. Matematika-SD NBPDMAT 21406197