na INLIS000000000015423 20150112170830.0 979 - 062 - 111 - 6 0010-011500000008196 808.5 Helena Olii PUBLIC SPEAKING Cetakan pertama, 2010 Jakarta PT INDEKS 2010 155 hlm, ; 17 x 24,5 cm 17 x 24,5 cm 1449