AN EFFICIENT PRESENTATION FOR THE GROUP SL (2,121)

. (1992). AN EFFICIENT PRESENTATION FOR THE GROUP SL (2,121). (e31207). Journal of Sciences, Islamic Republic of Iran, 3(1), e31207

. "AN EFFICIENT PRESENTATION FOR THE GROUP SL (2,121)" .e31207 , Journal of Sciences, Islamic Republic of Iran, 3, 1, 1992, e31207.

. (1992). 'AN EFFICIENT PRESENTATION FOR THE GROUP SL (2,121)', Journal of Sciences, Islamic Republic of Iran, 3(1), e31207.

, "AN EFFICIENT PRESENTATION FOR THE GROUP SL (2,121)," Journal of Sciences, Islamic Republic of Iran, 3 1 (1992): e31207,

. AN EFFICIENT PRESENTATION FOR THE GROUP SL (2,121). J. Sci. I. R. I.. 1992;3(1):e31207.