Volume 12 Number 6 (Jun. 2021)

Article#	Title & Authors	Page
1335	Modelling and Assessment of Accidental Gas Release from Damaged Subsea Pipelines by Ahmed M. Ellethy, Ahmed S. Shehata, Ali I. Shehata, and Ahmed Mehanna	162
1336	Recycling of Non-metallic Residue from Waste Printed Circuit Boards to Produce Interlocking Concrete Blocks by Sawitri Pianchaiyaphum, Suphaphat Kwonpongsagoon, Premrudee Kanchanapiya, and Chakrapan Tuakta	169
1337	Occurrence and Distribution of Hexachlorohexane (HCH) Concentration in Agricultural Soils in Albania Using Gas Chromatography by Armela Tafa, Iva Kertusha, and Ambra Xhafka	175
1338	Comparative Cost Benefit Analysis of Conventional Farming and Agroecological Farming for Paddy Cultivation in Bachok, Kelantan by Ah Choy Er, Habibah Ahmad, and Azima Abdul Manaf	181
1339	The Sustainable Development Indicators of the Environment for Cultural Landscapes in Chung Hsing New Village, Taiwan by Shih-Jen Feng and I-Hui Lin	188