1 1 20 Nana Triapnita Nainggolan Primary Author Astri Rumondang Additional Author Munandar Munandar Primary Author Andriasan Sudarso Primary Author Lora Ekana Nainggolan Primary Author Fuadi Fuadi Primary Author Puji Hastuti Primary Author Dewa Putu Yudhi Ardiana Additional Author Acai Sudirman Additional Author Dyah Gandasari Primary Author Nina Mistriani Primary Author Aditya Halim Perdana Kusuma Additional Author Deddy Gusman Additional Author mixed material 9786236761236 medan Yayasan Kita Menulis 2020