Energy-Efficient Clustering and Routing Using ASFO and a Cross-Layer-Based Expedient Routing Protocol for Wireless Sensor Networks. - Venkatesan Cherappa; Thamaraimanalan Thangarajan; Sivagama Sundari Meenakshi Sundaram; Fahima Hajjej; Arun Kumar Munusamy; Ramalingam Shanmugam (Sensors, 2023)