Hidayah, Irwin, 		Kuswandi, Bambang, AND 		Wulandari, Lestyo.
" Deteksi Kemurnian Air Zamzam  Menggunakan Metode  Spektrofotometri Near Infra Red (NIR) dan Kemometrik (Detection of Zamzam Water Purity Using Near Infra Red Spectroscopy (NIR) and Chemometrics)" <em>Pustaka Kesehatan</em> [Online], Volume 2 Number 3 (7 September 2014)