[ ] Maddock, Mason, and Starbird (2015) considers the question of whether researchers should use tweets that have been deleted.
[ ] Maddock, Mason, and Starbird (2015) ພິຈາລະນາຄໍາຖາມຂອງບໍ່ວ່າຈະເປັນນັກຄົ້ນຄວ້າຄວນຈະນໍາໃຊ້ເລັດທີ່ໄດ້ຮັບການລຶບ.