Farid, M., Mase, L. Z., Setyowati, N., Muktamar, Z., Negara, B. F. S. P., and Likitlersuang, S., “Identification of soil porosity using geophysical and geotechnical observation for agricultural application”, Int. J. Agric. Tech., vol. 19, no. 4, pp. 1515–1524, Jul. 2023.