na INLIS000000000000057 20240612145216.0 240612| ||| | ind a 0010-062400000000057 The essence of effective Communication Ron Ludlow Ludlow, Ron Edisi pertama ; Cetakan pertama Yogyakarta : Andi, 1996 194 halaman ; ilustrasi ; 24 cm. 979-533-385-2 302.2 302.2 LUD e Communication 0000062