Abd Karim, S.F. et al. 2021. Full Factorial Design Analysis and Characterization of Polyethylene, Starch and Aloe Vera Gel Thin Film Formulation. International Journal on Advanced Science, Engineering and Information Technology. 11, 6 (Dec. 2021), 2139–2147. DOI:https://doi.org/10.18517/ijaseit.11.6.15343.