Marubuci: projecttoothpaste

Bincike game da sayen toothpaste
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Muna daliban Jami'ar Vilnius. Wannan binciken yana game da halayen sayen masu amfani. Za mu karɓi ra'ayoyinku da tunaninku don fahimtar halayen masu amfani yayin sayen toothpaste. Wannan binciken yana...