Ningsih, Ratna, et al. “The Effect Of Production Costs and Sales Volume (Nett) On Nett Profit In Manufacturing Companies In The Primary Consumer Goods Sector Listed On The Indonesia Stock Exchange For The 2017-2021 Period”. Journal of Accounting and Finance Management, vol. 3, no. 3, Aug. 2022, pp. 145-5, doi:10.38035/jafm.v3i3.121.