na BHATT-08140000000684 20140825105249.0 160921||||||||| | ||| |||| ||ind|| 010-081400000000684 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.