na INLIS000000000012199 20130612103734 Ind 010-061300000012199 Ind 535.33 535.33, Sri o Sri Widodo, Thomas Optoekktronika, komunikasi Seraf Optik, Thomas Sri Widdodo 1995 Yogyakarta 125 hlm., Ilus, 23 cm Optoekktronika NBPNMAT