Abdullah started following the work of catur supriyanto, Dian Nuswantoro University, Computer Science. 2012-04-27 03:45:26 -0700

Abdullah started following the work of castaka agus, Universiti Teknikal Malaysia Melaka, FTMK. 2012-02-29 20:10:17 -0800

Abdullah started following the work of Arief Huda, Universitas Islam Negeri Sunan Gunung Djati, Mathematica. 2011-12-06 17:48:27 -0800