Title	Concurrency Conflicts Resolution for IoT Using Blockchain Technology
Author	Amr Morgan, Ashraf Tammam, and Abdel-Moneim Wahdan
Citation	Vol. 21  No. 7  pp. 331-340
Keywords	Blockchain, distributed systems, decentralized access management, internet of things, concurrency management problem

Title	Evaluating the Usability and Effectiveness of Madrasati Platforms as a Learning Management System in Saudi Arabia for Public Education
Author	Edrees A. Alkinani and Abdullah I. A. Alzahrani
Citation	Vol. 21  No. 7  pp. 275-285
Keywords	LMS; Madrasati platform; teaching; Effectiveness, Usability, Accessibility; Saudi Arabia.

Title	Evaluating the Usability and Effectiveness of Madrasati Platforms as a Learning Management System in Saudi Arabia for Public Education
Author	Edrees A. Alkinani and Abdullah I. A. Alzahrani
Citation	Vol. 21  No. 7  pp. 275-285
Keywords	LMS; Madrasati platform; teaching; Effectiveness, Usability, Accessibility; Saudi Arabia.

Title	Evaluating the Usability and Effectiveness of Madrasati Platforms as a Learning Management System in Saudi Arabia for Public Education
Author	Edrees A. Alkinani and Abdullah I. A. Alzahrani
Citation	Vol. 21  No. 7  pp. 275-285
Keywords	LMS; Madrasati platform; teaching; Effectiveness, Usability, Accessibility; Saudi Arabia.