Guswin de Wee Kwame Asmah-Andoh Using science of conceptual systems to guide policy and theory of social change: a push towards more accurate anticipatory system modelling. 95-125 2022 51 Int. J. Gen. Syst. 2 https://doi.org/10.1080/03081079.2021.1998028 db/journals/ijgs/ijgs51.html#WeeA22