subgroups of order 2 of $S_4$
59138
Subgroups of $S_4$ isomorpic to $S_2$
71262
Subgroups of order $9$ isomorphic to $C_3 \times C_3$ in $S_6$
14895
Reference for the subgroup structure of $\rm{PSL}_2(q)$
133272
Number of normal subgroups of a non abelian group of order $21$... CSIR December $2013$
57434
$SL_2(\mathbb Z_3)/Z(SL_2(\mathbb Z_3)) \cong A_4$
113357
Groups of order $pqr$ and their normal subgroups
46687
Elements of $GL_{2}(\mathbb{Z})$ of finite order
142038
Finding the number of elements of order two in the symmetric group $S_4$
148904
Groups of order $p^3$
89805
2-dimensional Lie subgroups of $SO(3)$
36709
subgroup of direct product of two groups
129750
Order of $SL_2(\mathbb{Z}/ n\mathbb{Z})$
104080
Group with order $pq$ has subgroups of order $p$ and $q$
1996
$A_n$ is the only subgroup of $S_n$ of index $2$.
80186
How to show that $K\leq S_4$ is a normal subgroup?
78048
Group of order 24 with no element of order 6 is isomorphic to $S_4$
76962
Sylow $p$-subgroups of $GL_n(\mathbb{F}_p)$