Kurniawan, Setia Budi, and Diah Hermawan. “Analysis of the Influence of Macro and Micro Economic Factors on Stock Investment Risk (Study on Cigarette Companies Listed in LQ-45)”. Jurnal Penelitian, vol. 17, no. 2, Dec. 2011, pp. 817-29, doi:10.26905/jp.v17i2.6998.