Salimatul Ummah N, Muarifin M, Pitoyo A. The Effect Of The Jigsaw Type Cooperative Learning Model On The Writing Skills Of Grade X Students at SMA Negeri 4 Kediri In Negotiation Text Material For The 2024/2025 Academic Year. BIP [Internet]. 2025 Sep. 28 [cited 2026 Sep. 2];7(2):134-46. Available from: https://jurnal.unprimdn.ac.id/index.php/BIP/article/view/7242