1. Department of Architecture, Faculty of Engineering, Udayana University, Kuta Selatan 80361, Bali, Indonesia
2. Department of Mathematics, Dwaraka Doss Goverdhan Doss Vaishnav College, University of Madras, Chennai, Arumbakkam, Chennai, India
3. IoT- HH Campus, Ambo University, Ambo, Ethiopia
4. Universidad Continental, Huancayo, Lima, Peru