1. Aufmann RN, Lockwood JS et al (2018) Mathematical excursions. CENGAGE
2. Bortolotti L (2008) An introduction to the philosophy of science. Polity
3. Cairo A (2016) The truthful art: data, charts, and maps for communication. New Riders
4. Cellucci C (2017) Rethinking knowledge: the heuristic view. Springer
5. Chang M (2014) Principles of scientific methods. CRC Press