hung ng: assistant module user tada: assistant semester exam vth: student view exam hung duong the rest --------------------------- / {g} auth login {gp} logout {g} view semester / {gp} modules / {gp} [id] {gp} exam / {gp} [id] {gp} assistant semester add {gp} edit/[id] {gpp} delete/[id] {p} modules add {gp} edit/[id] {gpp} delete/[id] {p} participants/[id] / {gp} add {p} delete {p} exam add {gp} edit/[id] {gpp} delete/[id] {p} participants/[id] {gp} user / {gp} [id] {gp} add {gp} edit {gpp} delete {p} student sign {gp} register-exam {p} deregister-exam {p}