Pujiono, Pujiono. “Metode Ijtihad Lembaga Bahthul Masail PCNU Jember: Studi Tentang Ijtihad Jama’i Bidang Ekonomi: Ijtihad Methods of the Bahthul Masail Institution of PCNU Jember: A Study on Collective Ijtihad in the Economic Field”. Fenomena, vol. 16, no. 1, Jan. 2017, pp. 85-100, https://doi.org/10.35719/fenomena.v16i1.663.