Tuomela, R (1987). "Chapter 4: Science, Protoscience, and Pseudoscience". ใน Pitt JC, Marcello P (บ.ก.). Rational Changes in Science: Essays on Scientific Reasoning. Boston Studies in the Philosophy of Science. Vol. 98. Springer. pp. 83–101. doi:10.1007/978-94-009-3779-6_4. ISBN978-94-010-8181-8.
Baran GR, Kiana MF, Samuel SP (2014). "Science, Pseudoscience, and Not Science: How Do They Differ?". Chapter 2: Science, Pseudoscience, and Not Science: How Do They Differ?. Healthcare and Biomedical Technology in the 21st Century. Springer. pp. 19–57. doi:10.1007/978-1-4614-8541-4_2. ISBN978-1-4614-8540-7. within the traditional medical community it is considered to be quackery
