“IMPLEMENTASI METODE WP DAN ELECTRE DALAM SISTEM PENDUKUNG KEPUTUSAN REKOMENDASI TRAVEL HAJI DAN UMRAH DI KOTA MEDAN”. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, vol. 7, no. 2, May 2024, pp. 645-50, https://doi.org/10.54314/jssr.v7i2.1816.