Raihan NA, Shiroth SF. Analisis Faktor Kinerja Penjualan Harian UMKM Menggunakan Metode Feature Engineering dan XAI Berbasis Gradient Boosting Regressor . bulletincsr [Internet]. 2026Feb.21 [cited 2026Apr.16];6(2):693-70. Available from: http://www.hostjournals.com/bulletincsr/article/view/1005