Ion Select multiple binding [selected] via array

[abdullahshafiq63]

<ion-item>
    <ion-label>Pets</ion-label>
    <ion-select multiple="true">
      <ion-select-option value="p.value" *ngFor="let p of pets" selected="{{p.isSelected}}">
        {{ p.name }}</ion-select-option
      >
    </ion-select>
  </ion-item>

this.pets = [
      {
        value: 'bird1',
        name: 'Bird1',
        isSelected: true
      },
      {
        value: 'bird2',
        name: 'Bird2',
        isSelected: false
      },
      {
        value: 'abc',
        name: 'Abc',
        isSelected: true
      }
    ];

Selected directive is not working properly.