JOEL - The scriptures indicate that Jesus did it Himself by the power that He received from the Father. Here are some relavant scriptures.

"Therefore doth my Father love me, because I lay down my life, that I might take it again.
No man taketh it from me, but I lay it down of myself. I have power to lay it down, and I have power to take it again. This commandment have I received of my Father." (John 10: 17-18)

"Verily, verily, I say unto you, The hour is coming, and now is, when the dead shall hear the voice of the Son of God: and they that hear shall live.
For as the Father hath life in himself; so hath he given to the Son to have life in himself;" (John 5:25-26)

"Wherefore, how great the importance to make these things known unto the inhabitants of the earth, that they may know that there is no flesh that can dwell in the presence of God, save it be through the merits, and mercy, and grace of the Holy Messiah, who layeth down his life according to the flesh, and taketh it again by the power of the Spirit, that he may bring to pass the resurrection of the dead, being the first that should rise." (2 Nep 2:8)

"But behold, the bands of death shall be broken, and the Son reigneth, and hath power over the dead; therefore, he bringeth to pass the resurrection of the dead." (Mos 15:20)

President Marion G. Romney said:
"By the power of the priesthood Jesus gave sight to the blind, hearing to the deaf, strength to the lame, and healed all manner of diseases. He raised from the dead the son of the widow of Nain. (See Luke 7:11–15.) He even resurrected himself by the power of the priesthood." (Marion G. Romney, “Priesthood,” Ensign, May 1982, 43).