Dewi Anggraini, Eka, Syafruddin Karimi, Indrawari Indrawari, y Endrizal Ridwan. 2019. «Revealed Preference in President Election 2019 in Padang City West Sumatra Province». Opción 35 (agosto), 1321-39. https://produccioncientificaluz.org/index.php/opcion/article/view/31630.