M. Roviq, A. S. Karyawati, P. K. Sholihah, and E. Nihayati, “Manipulation of calcareous soil pH for temulawak (Curcuma xanthorrizha Roxb.) cultivation”, J. Degrade. Min. Land Manage., vol. 11, no. 1, pp. 4999–5006, Sep. 2023.