=LDR 00000nam 2200000 4500 =001 INLIS000000000017997 =005 20130612113200 =008 ***********************************Ind** =035 ##$$0010-061300000017997 =041 ##$$a Ind =082 ##$$a 153.153 2 =090 ##$$a 153.153 2, Hak m =100 ##$$a Hakim., Thursan =245 ##$$a Mengatasi gangguan konsentrasi, plus teknik-teknik latihan konsentrasi, Thursan Swadaya, 2003 =260 ##$$a 2003 $b Jakarta =300 ##$$a x, 130 hlm, ilus, 21 cm =650 ##$$a Konsentrasi =850 ##$$a NBPNMAT