. H. P. Daveza, . I. . Wijayanti, and . A. D. . Anggo, “Pengaruh perbedaan waktu ekstraksi terhadap karakteristik kalsium Halimeda opuntia: The effect of different extraction time on the characteristics of calcium from Halimeda opuntia”, JPHPI, vol. 28, no. 1, pp. 1–12, Jan. 2025, doi: 10.17844/jphpi.v28i1.56126.