Siregar, I. H., and A. Muis. “KARAKTERISTIK AERODINAMIS DUA SILINDER TERIRIS TYPE 1 YANG TERSUSUN SIDE BY SIDE PADA BILANGAN REYNOLDS SUBKRITIS”. Mesin, vol. 22, no. 1, May 2017, pp. 28-39, https://journals.itb.ac.id/index.php/jtms/article/view/4970.