Muhyi, Yumarsono, AND 		Pahlevi, Said.
" HASHTAG POPULARITY INDEX (HPI): ELIMINASI SPAM DI HASHTAG" <em>TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika</em> [Online], Volume 2 Number 1 (20 December 2018)