Co-Authors Ambarita, Romika Damanik, Darwin Damanik, Elfina O P Damanik, Parlin Damanik, Tommi Girsang, Christin Imelda Gultom, Mael Vantri Hermes, Christian Daniel Nainggolan, Raja Mangaratua Nurfadila, Nabila Panjaitan, Pawe Purba, Djuli Sjafei PURBA, ELIDAWATY PURBA, JOHANES WILFRID PANGIHUTAN Saragih, Liharman Siadari, Faisal Sijabat, Santri A Sinaga, Mahaitin H Sipayung, Tuahman Sri Martina Tarigan, Wico J Tumanggor, Bagudek Wani, Agustama