Sukmawati, S., Ghazali, M. and Afifurrahman, A. (2023) “COBB-DOUGLAS FUNCTIONAL MODELLING IN ECONOMETRICS (CASE STUDY: THE IMPACT OF SALES AND OPERATIONAL EXPENSES ON NET PROFITS)”, Jurnal Diferensial, 5(2), pp. 96-105. doi: 10.35508/jd.v5i2.12165.