Fatkhiyah, Erfanti, Rr. Yuliana Rachmawati Kusumaningsih, and Renna Yanwastika Ariyana. 2021. “Bimbingan Teknis Sistem Informasi Pengujian Sampel Balai Laboratorium Lingkungan, DLHK DIY”. DHARMA BAKTI 4 (2):186-93. https://ejournal.akprind.ac.id/index.php/dharma/article/view/3699.