Septiasih, Diana, and Siti Mutoharoh. “Penerapan Endorphine Massage Dengan Lavender Oil Untuk Penurunan Kecemasan Ibu Bersalin”. Prosiding University Research Colloquium, Oct. 2019, pp. 478-84, https://repository.urecol.org/index.php/proceeding/article/view/679.