- Johar, S.Z.Nordin and C.N.Potts, Coordination of Production Scheduling and Vehicle routing Problem with Release Dates, 2015, presented in Simposium Kebangsaan Sains Matematik ke 23 (SKSM 23), 24-26 Nov.2015
- M.Ali, N.A.N.Azhuan, N.H. Sarmin, F.Johar, A Visual Model for Computing Some properties of Finite Groups, presented in The 3rd International Conference on Computer Engineering and Mathematical Sciences (ICCEMS 2014).
- Sarmin, F. Johar and H.Hamid, Perception of Primary School Students Towards Recreational Mathematics in a Camping Environment , 2005, presented in 2nd International Conference on Research and Education in Mathematics (ICREM 2)
- Sarmin, F. Johar and H.Hamid, Berekreasi Dengan Matematik , 2005, presented in Simposium Kebangsaan Sains Matematik ke-XIII UUM/PERSAMA/Kerajaan Negeri Kedah.