Hwang, S F, W L Chao, and C L Wu. 2023. “A COMPETITIVE ANALYSIS OF IMPROVED COVER-BASED 2CONNECTED NODE PLACEMENT ALGORITHM FOR THE 2CONNECTED RELAY NODE PLACEMENT PROBLEM UNDER DELAY CONSTRAINT IN WIRELESS SENSOR NETWORKS”. Interdisciplinary Journal of Agriculture and Environmental Sciences (IJAES) 9 (3):28-43. https://sadijournals.org/index.php/IJAES/article/view/46.