Arifhakim Azizan, Mohd, Noor Azlina Mohd Salleh, Muhammad Hussain Ismail, and Valliyappan David Natarajan. 2018. “Fabrication of Functionally Graded Open-Cell Aluminium Foam Using Graded NaCl in Infiltration Casting”. International Journal of Engineering & Technology 7 (4.18): 171-75. https://doi.org/10.14419/ijet.v7i4.18.21897.