Co-Authors Antonij Edimarta Sitanggang Asfianti, Vivi Damanik, Rani Kawati Flora Sijabat Frida Liharris Saragih Ginting, Monika Harianja, Ester Saripati Ketaren, S. Otniel Lumbangaol, Theresia Veronika Marbun, Eva Diansari Norfazila Pardede, Jek Amidos Rani Kawati Damanik Rika Rejeki, Rika Rinco Siregar Saragih, Frida Saragih, Frida Liharris Sembiring, Rinawati Sembiring, Terang Uli J Siahaan, Maniur Arianto Sianturi, Gita Sonia Sijabat, Flora Simanjuntak, Yunida Turisna Sinaga, Taruli Rohana Sinuraya, Elida Sipayung, Apriska Dewi Sipayung, Rosetty Sitanggang, Antonij Edimarta Sri Purwanti Supartiningsih - - Tripena, Nenny Vierto