Illing, Ilmiati, et al. “IDENTIFIKASI SENYAWA METABOLIT SEKUNDER EKSTRAK ETANOL DAUN PECUT KUDA (Stachytarpheta Jamaicensis L) MENGGUNAKAN GC-MS”. Cokroaminoto Journal of Chemical Science, vol. 3, no. 1, Sept. 2021, pp. 13-16, https://science.e-journal.my.id/cjcs/article/view/73.