Utomo, Unggul Haryanto Nur, Universitas Ahmad Dahlan, Indonesia
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Vol 1, Number 1, October, 2021 - Articles
The Effectiveness of Public Speaking Training to Improve Student’s Self-Confidence
Abstract PDF -
Vol 3, Number 1, October, 2023 - Articles
Rainwater Harvesting: Sustainable Behavior for Collective Well-Being and Environmental Sustainability
Abstract PDF