Mahasri, G., Woro Hastuti Satyantini, Nina Nurmalia Dewi, Lia Oktavia Ika Putri, Lilis Cahaya Septiana, Elangga Sony Widiharsono, Salman Aldo Alfaresi, Faisol Mas’ud, Fuquh Rahmat Shaleh, M. Khairul Anam and Ika Purnamasari 2024. Improvement of Immune Defense and Survival of Grouper Fish (Ephinepelus sp.) Using the Immuno-Probiosirkulasi System (SI-PBR) Method in Semi-Intensive Ponds in Brondong, Lamongan. Grouper. 15, 1 (Apr. 2024), 95–105. DOI:https://doi.org/10.30736/grouper.v15i1.243.