Hamsa, Azizulfiqri, Tahrir Aulawi, and Bakhendri Solfan. 2021. “Difference in Harvesting Time for The Chemical Quality of Red Betel Leaf (Piper Crocatum Ruiz & Pav.)”. Jurnal Online Pertanian Tropik 7 (3):317-25. https://doi.org/10.32734/jopt.v7i3.4620.