Hamdiani, S., L. R. T. Savalas, A. A. Purwoko, and S. Hadisaputra. “Theoretical Study on the Binding Selectivity of 18-Membered Azacrown Ethers With Alkaline Earth Metal Species”. Acta Chimica Asiana, vol. 1, no. 1, Jan. 2018, pp. 17-23, doi:10.29303/aca.v1i1.5.