Girsang, Christin Imelda, et al. “Pengaruh Perlakuan Pupuk NPK Mutiara 16.16.16 Dan Pupuk Kandang Ayam Terhadap Pertumbuhan Dan Produksi Tanaman Lobak (Raphanus Sativus L.) ”. Future Academia : The Journal of Multidisciplinary Research on Scientific and Advanced, vol. 3, no. 4, Oct. 2025, pp. 1606-22, doi:10.61579/future.v3i4.652.