Manullang, Tegdi Subanda, and I Made Krisna Yudhana Wisnu Gupta. “The Effect of The Policy of Imposition of Import Duties on The Import of Indonesian Ceramic Tiles”. Jurnal Indonesia Sosial Sains, vol. 6, no. 5, June 2025, pp. 1674-90, doi:10.59141/jiss.v6i5.1661.