Del Rivero Del Rivero JA. Heckler & Koch and the systematic attacks on Ayotzinapa (Mexico) students. revHUMAN [Internet]. 2022 Dec. 26 [cited 2024 Sep. 21];15(5):1-11. Available from: https://ojs.bdtopten.com/karim/index.php/revHUMAN/article/view/4288