“Characterization of thermo-physical and hardness properties of unsaturated polyester resin hybrid nano composites Sihama Issa Salih1, Waleed Bdaiwi Salih2, Husam Sakin Hamad2” (2018) Iraqi Journal of Physics, 16(37), pp. 136–148. doi:10.30723/ijp.v16i37.85.