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Purba, Wenni, Yuli Yantika Syahputri, Nita Andriani Lubis, Gabriella Septiani Nasution, Dewi Setiyawati, & Febri Sembiring.
" Evaluation of the potential of purple eggplant peel extract (Solanum melongena L.) as a pH indicator for bacterial growth." <em>Jurnal Biologi Udayana</em> [Online], 29.1 (2025): 1-9. Web.  7 Sep. 2026