Frustrated by the lack of progress so far in trying to free their daughters, the parents called on Nigerian authorities to use support from other countries.
"By all means, lets get the support we need from global players," a former World Bank vice president, Obiageli Ezekwesili, said in a televised interview.
She was speaking at the venue of a sit-in protest organised by dozens of mothers and women in Abuja in support of the release of the girls.
The women vowed to sustain their pressure on the Nigerian authorities to secure the release of 223 schoolgirls still being held by suspected Boko Haram Islamists.
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Nigerian police yesterday put the figure at 223 out of 276 girls seized on April 14 from their school in Chibok, in the country's northeast, revising upwards the number of youngsters abducted.
School and government officials in the northeastern state of Borno had previously given lower figures on the number of girls being held.
Gunmen believed to be Islamist fighters stormed the girls' boarding school, forcing them from their dormitories onto trucks and driving them into the bush.
The Nigerian government said that it has set up a committee, presided over by a senior army general, to advise it on a mission to secure the release of the girls.
Isa Umar Gusau, spokesman of Borno state government, said that the state has been given three slots on the committee.
A father of one of the abducted girls in Chibok dismissed the effectiveness of this committee, expected to be inaugurated on Tuesday.
"Our frustration is increasing with every passing day...Why can't the government seek assistance from other nations?," asked the parent, who demanded anonymity.
US Secretary of State John Kerry today vowed that Washington will do "everything possible" to help Nigeria deal with Boko Haram militants.