Turipanam Alamanda, D.; Ovinia Saraswati, P.; Sidiq Adi Prabowo, F.; Azhari, M. Study of Open and Sealed Auctions in Astra Credit Companies Using Batna and Zopa. IJET 2018, 7 (3.21), 217-226. https://doi.org/10.14419/ijet.v7i3.21.17163.