PENGARUH KONDISI TAJUK DAN APLIKASI GETAR TERHADAP PRODUKSI NIRA AREN DI REJANG LEBONG BENGKULUPlant Sugar Palm (Arenga Pinnata) Is a Plant That Provides Economic Benefits, Social, and Conservation. Nira Is One of the Sugar Plant Products of High Economic. Petrop 2019, 3 (2), 177-181. https://doi.org/10.32734/jopt.v3i2.2973.