Direct Investment Casting For Pattern Developed By Desktop 3D PrinterO.M.F. Marwah, M.S. Shukri, E.J. Mohamad, M.A. Johar, R.H.A. Haq and R.K. KhirotdinMATEC Web Conf., 135 (2017) 00036DOI: https://doi.org/10.1051/matecconf/201713500036