The relationship between private cost and demand of secondary education in secondary schools, Ilorin metropolis Kwara State, Nigeria: Hubungan antara kos dan permintaan pendidikan menengah di sekolah menengah, Ilorin Metropolis Kwara State, Nigeria. Attarbawiy. 2022;6(2):131-140. doi:10.53840/attarbawiy.v6i2.62