SirsiDynix Enterprise https://katalog.hacettepe.edu.tr/client/tr_TR/default_tr/default_tr/qu$003dLearning$0026qf$003dSUBJECT$002509Subject$002509SLA.$002509SLA.$0026ps$003d300$0026isd$003dtrue?dt=list 2026-01-13T05:45:19Z