Studi Kekerabatan Ayam Ketawa (Gallus gallus domestics LINNAEUS, 1758) Berdasarkan Morfometrik Pita Suara dan Analisis Gen IGF-1 (Insulin-Like Growth Factor-1) = Study of relationship the gaga chicken (Gallus gallus domesticus LINNAEUS, 1758) dangdut and slow type base on morphometric vocal cord and IGF-1 (Insulin-Like Growth Factor-1) Gene Analysis - Alfi Sophian, author (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2018)