Rendi, A. M., S. Supriadi, and S. Suherman. “Flower Extracts of Cage Plants (Canavalia Virosa) As an Indicator of Acid Base”. Jurnal Akademika Kimia, vol. 9, no. 4, Nov. 2020, pp. 191-8, doi:10.22487/j24775185.2020.v9.i4.pp191-198.