Generation Gap (less) : Judul Generation Gap (less) : Penulis Erwin Perengkuan Becky Tumewu Publisher Gramedia Pustaka Utama Edition Bahasa Indonesia Format Text Physical Information ix + 127 ; ilus ; 14 x 20 Summary/Description Standard Number (ISBN/ISSN) 9786020641966 Keyword(s) Self Improvment 153.4