Yulius, Nisma, et al. “The Effect of Vitamin C Giving on the Degree of Leucocyte Infiltration and Edema Alveolar in Increasing the Level of Arterial Oxygen in White Rats (Rattus Norvegicus) Having Pulmonary Contusion”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 48, no. 1, July 2019, pp. 30-37, https://gssrr.org/JournalOfBasicAndApplied/article/view/10151.