Sihombing, Tanggor. “ANALISA PENGARUH INDEKS HARGA SAHAM LUAR NEGERI TERHADAP INDEX HARGA SAHAM GABUNGAN INDONESIA: SUATU BUKTI EMPIRIS”. Jurnal Ekonomis 7, no. 2 (September 18, 2017): 15-29. Accessed April 3, 2025. https://jurnal.unai.edu/index.php/jeko/article/view/471.