Besar, Z. L., and S. Akhbar. “Effect of Particle Size, Shape, and Weight Percentage of Hydroxyapatite (HA) on Rheological Behaviour of polycaprolactone/Hydroxyapatite (PCL/HA) Composites”. Malaysian Journal of Chemical Engineering &Amp; Technology, vol. 4, no. 2, Oct. 2021, pp. 132-6, doi:10.24191/mjcet.v4i2.14980.