Muhammad Arif Hanny Ferry Fernanda, Ashon Sa’adi, and Sudjarwo, “VERIFIKASI LINIERITAS KURVA BAKU TESTOSTERON MENGGUNAKAN METODE ELISA (ENZYME-LINKED IMMUNOSORBENT ASSAY)”, JOURNAL OF RESEARCH AND TECHNOLOGY, vol. 5, no. 1, pp. 50–56, Jun. 2019.