na BHATT-08140000000701 20140825111705.0 160921||||||||| | ||| |||| ||ind|| 010-081400000000701 JKPNPNA [21] 370.15 370.15 TJE k Tjetje Jusuf Kesukaran-kesukaran dalam Pendidikan/ Tjetje Jusuf Cet. 2 Jakarta : PN Balai Pustaka, 1980. 95 hlm. : ilus. ; 20 cm.