1 1 30 Sinaga, Bornok Primary Author Manullang, Sudianto Primary Author Hutapea, Tri Andri Primary Author Kristianto S, Andri Primary Author Sinaga, Lasker Pangarapan Primary Author Marianus S, Mangaratua Primary Author Sinambela, Pardomuan N. J. M. Primary Author mixed material 9786024271183 jakarta Kementerian Pendidikan dan Kebudayaan 2017 Kelas_11_SMA_Matematika_Guru_2017-1.jpg.jpg