Daryanto, Wiwiek Mardawiyah, and Fajar Rachmanto. “The Effect of Working Capital Turnover and Receivable Turnover on Profitability: Case Study on PT. Merck Tbk”. International Journal of Business Studies, vol. 1, no. 2, Sept. 2018, pp. 60-65, doi:10.32924/ijbs.v1i2.20.