R. Kwena, P. E. Mukulu, D. J. Nzulwa, and P. R. Odhiambo, “MODERATING EFFECT OF PROJECT ENVIRONMENT ON THE RELATIONSHIP BETWEEN CONSTRAINED PROGRAMMING AND PROJECT OUTCOMES IN UNITED NATIONS AGENCIES IN KENYA”., JEPM, vol. 4, no. 2, pp. 53–69, Sep. 2019.