Efficient security level in wireless sensor networks (WSNs) using four-factors authentication over the Internet of Things (IoT) oleh Albandari Alsumayt, Majid Alshammari, Zeyad M. Alfawaer, Fahd N. Al-Wesabi, Nahla El-Haggar, Sumayh S. Aljameel, Sarah Albassam, Shahad AlGhareeb, Nouf Mohammed Alghamdi, Nawir Aldossary