SOLIKIN, Agus. Konsep Kesejajaran Garis dalam Geometri Euclid dan Geometri Riemann serta Aplikasinya dalam Kajian Ilmu Falak. MUST: Journal of Mathematics Education, Science and Technology, [S. l.], v. 2, n. 2, p. 243–254, 2017. DOI: 10.30651/must.v2i2.865. Disponível em: https://journal.um-surabaya.ac.id/matematika/article/view/865. Acesso em: 17 may. 2024.