Author — Heru Utama Putra (Kota Cirebon, Indonesia)
Author — Eka Rifqi Setiawan (Purbalingga, Indonesia)
Author — Dede Nugraha (Tasikmalaya, Indonesia)
Author — Ira Dvilyuk, Evgeny Kopytin (--, Russian Federation)
Author — Ahmad Suhadi (--, Indonesia)
Author — Alisa Oleinikova (--, Kazakhstan)
Author — Matt Cole Wilson (Kansas City, MO, USA)
Author — Sasha Pavljenko (Rostov on Don, Russian Federation), Yefim Tsvik
Author — Dimitri Antonov (Krasnoyarsk, Russian Federation)
