na INLIS000000001332779 ind 0010-0225000790 Teknologi Informasi Gerry Bailey Gerry Bailey Dua PT. Ensiklopedia Nasional Indonesia, 2013 48 hlm. 29 cm. 978-979-798-517-2 R503 GER t 503 Ensiklopedia Sains 000000003032 000000003033 000000003034