Sumer Hasimoglu (2021) “Impact of Innovated Per Adult Human Unit Method (PAHUM) vs. Error Bound Per Capita (PC): Recalibration of EU and Developing Countries (India), Family/ Households’ Population, Food Security and Environmental Sustainability ”, Challenging Issues on Environment and Earth Science Vol. 5, pp. 78–96. doi: 10.9734/bpi/ciees/v5/2300F.