Rohman MH, Marwoto P, Priatmoko S. A Study of Sound Materials of Water Hyacinth (Eichhornia Crassipes) as Alternative STEAM Integrated Project-Based Learning Model (PjBL). jpppf [Internet]. 2022Jun.30 [cited 2026Apr.15];8(1):11 -22. Available from: http://103.8.12.212:33180/unj/index.php/jpppf/article/view/22027