na INLIS000000000394726 20211007114124 0010-0318000078 ta 211007 g i ind 979-8525-21-3 383 383 YAN m Yan Tirtobisono Mengenal Surat Menyurat / Yan Tirtobisono - Jakarta : Edumassa, 1997 126 hlm. : Ilust. ; 21 cm. Persuratan - 1656/PS/H/XII/2010 1657/PS/H/XII/2010 1658/PS/H/XII/2010 2692/H/VII/1998