Co-Authors Acai Sudirman Anggriani, Rini Aulia Arief Nasution Benny S H Saragih Butarbutar, Marisi Christine Loist Darwin Lie darwis darwis, darwis Devi Wulandari Donny Marasutan Harahap Edy Dharma Efendi, Efendi Erbin Chandra Erwin Pardede Faisan Achmad Nasution Fitria Halim Ginting, Kiki Lala Rosi Hadi Suriono Ibrahim Ahmad John Lidia John Lidia Lestari, Endang Tri Lora Ekana Nainggolan Lubis, Susanti Sri Rezeki Marihot Manullang Marthin Hutler Ambarita Nana Triapnita Nainggolan Nelly Ervina Ni Made Ayu Gemuh Rasa Astiti Ni Putu Maha Lina Nikous Soter Sihombing Novita Novi Sari Olympic Olympic Rasmulia Sembiring Rizki Amalia Robert Tua Siregar Robert Tua Siregar Rosmaida Rosmaida Salman Faris Sherly Sherly Siahaan, Andri Christian Sianturi, Marudut Silitonga, Hery Pandapotan Sisca Sisca Sonya Putri Shinta Purba Syaifuddin Syaifuddin Syaifuddin syaifuddin syaifuddin Syaifuddin Syaifuddin Syaiful Amri Tampubolon, Vebriana Vebriana Tampubolon Yansen Siahaan Yuris Danilwan