E. Luringunusa, G. Sanger, D. A. Sumilat, R. I. Montolalu, L. J. Damongilala, and V. Dotulong, “Qualitative Phytochemical Analysis of Gracilaria verrucosa from North Sulawesi Waters”, JIP, vol. 11, no. 2, pp. 551–563, Oct. 2023.