List of Articles شدت صوت Open Access Article Abstract Page Full-Text 1 - Optimization of Acoustical Function of Sound Absorbers with Emphasis on Geometry and Height of Spaces zahra sokhandan farshad nasrollahi Abas Ghafari Open Access Article Abstract Page Full-Text 2 - The Effect Study of Distance and Planting Width of Tree Species of Abadeh City Green Space in Sound Pollution Control mohammad barzegar haniyeh nowzari 10.22034/jest.2019.41413.4526 Open Access Article Abstract Page Full-Text 3 - A Research on Appropriate Plant Species for Green Facades to Reduce the Sound Level Akram Hosseini Hashem Amini Toosi Open Access Article Abstract Page Full-Text 4 - Investigation of Noise pollution in the Delijan city’s workshops mojtaba jamiati