Induction of embryonic callus from several Arabica coffee varieties using a combination of plant growth regulator formulationsSepdian Luri Asmono, Ujang Setyoko, Rahmawati, Nisa Budi Arifiana and Dyah Nuning ErawatiBIO Web Conf., 210 (2026) 02002DOI: https://doi.org/10.1051/bioconf/202621002002