Columbia subject headings:
Astronomy--Religious aspects--Islam.
Fasts and feasts--Islam.
Islamic calendar.
Moon--Religious aspects--Islam.
New moon--Religious aspects--Islam.
Ramadan.
Harvard subject headings:
Astronomy--Religious aspects--Islam
Fasts and feasts--Islam
Islamic calendar.
Moon--Religious aspects--Islam
New moon--Religious aspects--Islam
Ramadan
Princeton subject headings:
Astronomy--Religious aspects--Islam.
Fasts and feasts--Islam.
Islamic calendar.
Moon--Religious aspects--Islam.
New moon--Religious aspects--Islam.
Ramadan.