Anggita, Rizka Devi, Zulkifli Zulkifli, and Martha L Lande. 2017. “Potential of Pineapple Madu Shell (Ananas Comosus (L.) Merr.) As Anti-Browning Agent in Apples Manalagi (Malus Sylvestris Mill)”. Jurnal Penelitian Pertanian Terapan 17 (1). https://doi.org/10.25181/jppt.v17i1.40.