Estimation of cost functions and analysis of profit and loss critical points in survey and design enterprises

Estimation of cost functions and analysis of profit and loss critical points in survey and design enterprises

Chen Jinliang, Deng Wei, Cao Longqi

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Coal Economic Research ›› 2023, Vol. 43 ›› Issue (5) : 88-92.

Estimation of cost functions and analysis of profit and loss critical points in survey and design enterprises

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