6 1 10 Megawati Simanjuntak Primary Author mixed material 14123681 Bandung Departemen Manajemen & Bisnis Fakultas Ekonomi Universitas Padjadjaran 2016 Simanjuntak Primary Author mixed material 9786020895314 jakarta Prenadamedia Group 2015 Mahir berbahasa Inggris tanpa Guru Herpinus Simanjuntak Primary Author mixed material 9795930583 jakarta visipro 1997 Cornelius Simanjuntak Primary Author Natalie Mulia Primary Author mixed material 9789790072992 jakarta Sinar Grafika 2009 Nikolas Simanjuntak Primary Author mixed material 9789794505717 Bogor Ghalia Indonesia 2012 E. E. Evans Primary Author Pritchard Primary Author Nancy Simanjuntak Translator mixed material jakarta bumi aksara 1986