Ahmmed, H. R., M. I. Hasan, M. G. Mortuza, and M. Ismail. “Preparation and Physico-Chemical Properties Evaluation of Biodiesel from Pithraj (Aphanamixis Polystachya)Seeds Available in Bangladesh”. Chemical Engineering Research Bulletin, vol. 22, no. 1, June 2021, pp. 43-48, doi:10.3329/cerb.v22i1.54298.