Indriani, D., and W. I. Sari. “The Effect of Net Profit Margin and Total Asset Turn Over on Return on Investment at Transmart Indonesia Employee Cooperative Period 2012–2021”. Fin Sinergy: Jurnal Manajemen Keuangan, Vol. 1, no. 2, Dec. 2023, pp. 133-48, doi:10.56457/fin.v1i2.491.