Co-Authors Ambarita, Bernadetta Arjuna Ginting, Arjuna Bangun, Seri Rayani Boris , Jev Boris, Jev Br Ginting, Friska Sri Handayani Br Karo, Mestiana Br Tarigan, Rica Vera derang, imelda Gaol, Hotmarina Lumban Ginting, Agustaria Hizkia, Indra Hutauruk, Adrian Karo, Mestiana Br M. Siallagan, Ance. manik, risda mariana Mariana Manik, Risda Melva Sianipar, Connie Mendrofa, Wetty Mayanora MTI, Anthonyus Muryani Muryani Napitupulu, David Sumanto Oktaviance, R Orien, Coni Pane, Jagentar Parlindungan Purba, Elsa Indriani Purba, Linca Rini Astuti Damanik RUPANG, ERNITA RANTE Rusmauli Lumban Gaol Saragih, Helinida Saragih, Pestaria Septriani Saragih, Ice Siallagan, Ance Sihombing, Ruth Agree Kartini Simbolon, Nagoklan Simbolon, Pomarida Simorangkir, Lindawati Simorangkir, R Oktaviance SINAGA, AMANDO Siringo-Ringo, Magda Sitohang, Clara Oktoriana Situmorang, Paska Ramawati Sri Martini Tondang, Gryttha Tumanggor, Lili Suryani