Grey relational evaluation of impact and control of malaria in Sub-Saharan Africa. - Tawiah Kwatekwei Quartey-Papafio; Sifeng Liu; Sara Javed (Grey Syst. Theory Appl., 2019)

Forecasting cocoa production of six major producers through ARIMA and grey models. - Tawiah Kwatekwei Quartey-Papafio; Saad Ahmed Javed; Sifeng Liu (Grey Syst. Theory Appl., 2021)