Ferdy, M., and N. Nurismalatri. “The Effect of Working Capital Turnover and Receivables Turnover on Return On Investment in PT Gudang Garam Tbk Between 2010 and 2020”. Indonesian Financial Review, vol. 2, no. 1, Sept. 2022, pp. 15-25, doi:10.55538/ifr.v2i1.13.