Ruben Cornelius Siagian, Lulut Alfaris, Goldberd Harmuda Duva Sinaga. Review for Understanding Dark Matter in The Universe as Negative Energy. ICRSE [Internet]. 2023 Apr. 24 [cited 2025 Apr. 30];2:679-85. Available from: https://sunankalijaga.org/prosiding/index.php/icrse/article/view/980