Suryawati S, Laili WN, Murniyanto E. Effect of ZnSO4 Fertilizer Application on Growth and Essential Oil Content of Green Betel Plant (Piper betle L.). Nusantara Sci. Tech. Proc. [Internet]. 2022 Mar. 15 [cited 2025 Jul. 7];:49-55. Available from: https://nstproceeding.com/index.php/nuscientech/article/view/602