Phytochemical screening, total flavonoid content, and total phenolic content of ethanol extract of the Indonesian Fern Selaginella Plana - Sutoyo, Suyatno; Amaria, I. G. M Sanjana; Rusly, Hidayah; Devy, Puspita Sari; A. Fadzlillah, Nurrulhidayah (2021)