Nasution, Budiman, Goldberd Harmuda Duva Sinaga, Arip Nurahman, and Ruben Cornelius Siagian. “Investigating the Relationship Between Climate Variables and Solar Activity: A Regression Analysis Approach”. JRST (Jurnal Riset Sains dan Teknologi) 7, no. 2 (September 15, 2023): 211–218. Accessed June 22, 2025. http://jurnalnasional.ump.ac.id/index.php/JRST/article/view/16922.