R. . . Tsapla Fotsa, B. P. . Ndemanou, A. S. Kemnang Tsafack, N. F. . Fotie Foka, and D. . . . . Sontia Fouazong, “Production of a dead oil well by a progressive cavity pump and its optimization”, IJCPE, vol. 25, no. 3, pp. 15–20, Sep. 2024, doi: 10.31699/IJCPE.2024.3.2.