Ermawati, Indriyani, and Mursyid, “Pengaruh Penambahan Bubuk Jahe Emprit (Zingiber officinale var. Amarum) terhadap Karakteristik Teh Cascara Kopi Liberika (Coffea liberica)”, PSPFS, vol. 8, pp. 128–136, Mar. 2025.