Co-Authors Agusman, Agusman Arison Nainggolan, Arison Arthur Simanjuntak August Halomoan Siregar B. Siahaan, Septony Br. Sembiring, Vebina N. C. Ginting, Mitha Dona Pasaribu Duma Rahel Situmorang, Duma Rahel Elisabeth, Duma M. Elisabeth, Duma Megaria Elperida J. Sinurat Farida Sagala Ferry Hidayat Ginting, Mitha C. H.P. Purba, Dimita Henri Saragih, Henri Ijonris, Yusuf Ivo Maelina Silitonga Jon Henri Purba, Jon Henri Junika Napitupulu Junita, Rahel Marbun, Sondang Marbun, Sondang Ni Bulan Mario Andriaskiton Megaria Elisabeth, Duma Melanthon Rumapea Melianna, Saur Merry Anna Napitupulu, Merry Anna Michael Novranda Surbakti Mislan Sihite, Mislan Mulatua Silalahi, Mulatua N.B. Marbun, Sondang Nadapdap, Kristanty M. N. Nadapdap, Kristanty M.N. Nainggolan, Rahel Junita Panggabean, Toman Panjaitan, Rike Y. Panjaitan, Rike Yolanda Purba, Dimita H.P Purba, Dimita H.P. Purba, Dimita Hemalli Premasari Putra Pratama Rajagukguk, Eva Gloria Rasmulia Sembiring Rintan Saragih, Rintan Robinhot Gultom, Robinhot Sagala, Lamria Sahala Purba Saur Melianna Sipayung, Saur Melianna Sembiring, Yosephine N. Septony B. Siahaan, Septony B. Siahaan, Septony Siahaan, Septony B Sianturi, Jeudi A. T. P. Sibarani, Apriani M SIBARANI, APRIANI M. Sibarani, Apriani Magdalena Silalahi, Mulatua P. Silitonga, Ivo M. Simanjuntak, Grace Y Simanjuntak, Gracesiela Y. Simanjuntak, Rimky M. P. Simanjuntak, Rimky Mandala Putra Simanjuntak, Wesly A. Sipayung, Tri Darma Siregar, Elizabeth Tamba, Iventura Fitra Uli Tambunan, Jesica Tiur Rajagukguk, Tiur Tri Dharma Sipayung, Tri Dharma Victor Victor Wesly Andri Simanjuntak, Wesly Andri Yolanda Panjaitan, Rike