First Author:   Doddy Ariefianto Bina Nusantara University moch.areifianto@binus.edu   Kampus Anggrek, Jl Kebun Jeruk Raya No. 27, Jakarta Barat Jakarta, 11530, Indonesia       www.Binus.ac.id Second Author: Irwan Trinugroho Universitas Sebelas Maret irwan.trinugroho@gmail.com   Surakarta, 57126, Indonesia