Popper, Karl. “Principles of Scientific Method: Notes on Lectures by Dr K.R. Popper Given at the University of Otago, 22–26 May 1945; Lecture 2. Testing of Theories”. New Zealand Science Review 69, no. 1 (December 7, 2023): 17–19. Accessed July 22, 2024. https://ojs.victoria.ac.nz/nzsr/article/view/8806.