Title	SAUDI ARABIAN UNDERGRADUATE STUDENTS’ PERCEPTIONS OF E-LEARNING QUALITY DURING COVID19 PANDEMIC
Author	Edrees A. Alkinani
Citation	Vol. 21  No. 2  pp. 66-76
Keywords	Online learning; e-learning; perception; students, Saudi Arabia, covid19.

Title	A Novel Second Order Radial Basis Function Neural Network Technique for Enhanced Load Forecasting of Photovoltaic Power Systems
Author	Arwa Ben Farhat, Shyam.Singh Chandel, Wai Lok Woo, and Cherif Adnene
Citation	Vol. 21  No. 2  pp. 77-87
Keywords	Artificial Neural Network (ANN); Radial Basis Function Neural Network (RBFNN); Load forecasting; Electrical systems, Photovoltaic systems.

Title	Method And Mathematical Algorithm For Finding The Quasi-Optimal Purpose Plan
Author	Stanislav Piskunov, Rayisa Yuriy, Tetiana Shabelnyk, Anton Kozyr, Kyrylo Bashynskyi, Leonid Kovalev, Mykola Piskunov
Citation	Vol. 21  No. 2  pp. 88-92
Keywords	Radio electronic means, mathematical algorithm, optimal methods, Quasi-Optimal Purpose Plan.

Title	Impact of Environmental Attitudes on the Judgment of Non-Professional Investors in Saudi Arabia
Author	Pr. Abdullah T. Alutaibi
Citation	Vol. 21  No. 2  pp. 93-102
Keywords	Environmental attitude, environmental performance, environmental insurance, non-professional investors, investment judgment.